*To calculate capacitance (C) from susceptance (B), you can use the formula C = 1 / (2πfB), where f is the frequency. Susceptance and capacitance are inversely related, so as susceptance increases, capacitance decreases, and vice versa. This formula helps determine the capacitance of a capacitive component in an AC circuit based on its susceptance and operating frequency.*

## Susceptance to Capacitance Calculator

Enter Susceptance (B) in Siemens (S):

Capacitance (C) in Farads (F):

Here’s a table that illustrates the relationship between susceptance (B), capacitance (C), and frequency (f):

Susceptance (B) | Frequency (f) | Capacitance (C) Formula |
---|---|---|

0.01 S | 50 Hz | C = 1 / (2π × 50 Hz × 0.01 S) ≈ 31.83 µF |

0.05 S | 100 Hz | C = 1 / (2π × 100 Hz × 0.05 S) ≈ 3.18 µF |

0.002 S | 200 Hz | C = 1 / (2π × 200 Hz × 0.002 S) ≈ 39.79 µF |

0.1 S | 500 Hz | C = 1 / (2π × 500 Hz × 0.1 S) ≈ 31.83 µF |

0.03 S | 1000 Hz | C = 1 / (2π × 1000 Hz × 0.03 S) ≈ 5.31 µF |

This table demonstrates how the capacitance value changes based on different susceptance values and frequencies using the formula C = 1 / (2πfB). Capacitance decreases as susceptance increases or as the frequency of the AC signal increases.

## FAQs

**How do you find capacitance from susceptance?** Capacitance (C) and susceptance (B) are related by the formula: C = 1 / (2πfB), where f is the frequency.

**What is the relationship between susceptance and capacitance?** Susceptance and capacitance are inversely proportional. As susceptance increases, capacitance decreases, and vice versa.

**What is the formula for capacitive susceptance?** The formula for capacitive susceptance (Bc) is: Bc = 1 / (2πfC), where f is the frequency and C is the capacitance.

**What is the susceptance of a capacitance?** The susceptance of a capacitance (Bc) is the imaginary component of the admittance (Y) of a capacitor. It is given by: Bc = 1 / (2πfC), where f is the frequency and C is the capacitance.

**What is susceptance formula?** The susceptance formula for a capacitor is: Bc = 1 / (2πfC), where f is the frequency and C is the capacitance.

**How to calculate capacitance?** Capacitance (C) can be calculated using the formula: C = Q / V, where Q is the charge stored on the capacitor and V is the voltage across it.

**What is the relation between V and capacitance?** The relationship between voltage (V) and capacitance (C) is inverse. As voltage increases, capacitance decreases, and vice versa.

**Is capacitive susceptance positive or negative?** Capacitive susceptance (Bc) is always positive for a capacitive element.

**What is the inverse of capacitance?** The inverse of capacitance (C) is called “capacitive reactance (Xc)” and is given by the formula: Xc = 1 / (2πfC), where f is the frequency.

**What is the formula for impedance to capacitance?** The impedance (Z) of a capacitor is given by: Z = 1 / (2πfC), where f is the frequency and C is the capacitance.

**What is the formula for capacitance XC?** The formula for capacitive reactance (Xc) is: Xc = 1 / (2πfC), where f is the frequency and C is the capacitance.

**What is the formula of original capacitance?** The original capacitance formula is: C = Q / V, where C is the capacitance, Q is the charge stored on the capacitor, and V is the voltage across it.

**What is Q to capacitance?** Q represents the charge stored on a capacitor, and it is directly proportional to the capacitance (C) and inversely proportional to the voltage (V). The relationship is Q = CV.

**What does 4n7 mean on a capacitor?** “4n7” on a capacitor denotes its capacitance value. In this case, it represents 4.7 nanofarads (nF).

**What are the expressions for capacitance?** The expressions for capacitance include:

- C = Q / V, where C is capacitance, Q is charge, and V is voltage.
- C = εA / d, where C is capacitance, ε is the permittivity of the material, A is the area of the plates, and d is the distance between the plates.

**Is susceptance the inverse of reactance?** Yes, susceptance (B) is the inverse of reactance (X). The relationship is B = 1/X.

**Is susceptance opposite to reactance?** Susceptance (B) and reactance (X) are related, but they are not opposites. They have inverse relationships, with B representing the imaginary part of admittance and X representing the imaginary part of impedance.

**What is susceptance measured in?** Susceptance (B) is measured in siemens (S), which is the unit of conductance.

**How do you find capacitance from frequency?** You can find capacitance (C) from frequency (f) using the formula: C = 1 / (2πfXc), where Xc is the capacitive reactance.

**Is capacitance equal to Q by V?** Yes, capacitance (C) is equal to the charge (Q) stored on a capacitor divided by the voltage (V) across it, which can be expressed as C = Q / V.

**Does capacitance depend on Q and V?** Yes, capacitance depends on both the charge (Q) stored on the capacitor and the voltage (V) across it, as given by the formula C = Q / V.

**How is capacitance directly proportional to voltage?** Capacitance (C) is not directly proportional to voltage (V); it is inversely proportional. As voltage increases, capacitance decreases, and vice versa.

**Can you have a negative capacitance?** Negative capacitance does not exist in typical electrical circuits. Capacitance is a positive scalar value that represents the ability of a capacitor to store charge.

**Does capacitance have to be positive?** Yes, in conventional electrical circuits, capacitance is always a positive value because it represents the ability to store positive charge.

**Is the capacitance always positive?** Yes, capacitance is always a positive scalar value in typical electrical circuits.

**What happens if capacitance is negative?** Negative capacitance is not a physical concept in standard electrical circuits. If a negative capacitance were somehow defined, it would have unconventional and complex implications for circuit behavior.

**What happens when a capacitor is backwards?** When a capacitor is connected backwards with reversed polarity, it may become damaged or fail to function as intended. Applying a voltage in the opposite direction can lead to breakdown and possibly destruction of the dielectric material.

**What happens when you charge a capacitor backwards?** Charging a capacitor in reverse polarity can lead to the breakdown of the dielectric material and potentially cause the capacitor to fail or become damaged.

**What happens to impedance when capacitance increases?** When capacitance increases, the capacitive reactance (Xc) decreases, leading to a lower impedance (Z) for the capacitor. Impedance is inversely proportional to capacitance for a fixed frequency.

**Does impedance increase with capacitance?** No, impedance decreases with increasing capacitance for a fixed frequency. Impedance (Z) is inversely proportional to capacitance (C) in a capacitive circuit.

**What is the difference between impedance and capacitance?** Impedance (Z) is a complex quantity that includes both resistance (R) and reactance (X), where X can be either inductive (XL) or capacitive (Xc). Capacitance (C) is a scalar value representing the ability of a capacitor to store charge.

**What is the formula for finding total capacitance in a series circuit?** The formula for finding the total capacitance (C_total) in a series circuit of capacitors is: 1 / C_total = 1 / C1 + 1 / C2 + 1 / C3 + … + 1 / Cn, where C1, C2, C3, etc., are the individual capacitances.

**What does C mean on a capacitor?** The letter “C” on a capacitor represents its capacitance value, typically measured in farads (F). It indicates the capacitor’s ability to store electric charge.

**How big is a 1 Farad capacitor?** A 1 farad (1 F) capacitor is a relatively large capacitor, and its physical size can vary depending on the specific design and construction. Capacitors with such high capacitance values are typically larger than common capacitors and may be used in specialized applications.

**How do you solve capacitance questions?** To solve capacitance questions, you need to use relevant formulas and principles of capacitance, including the capacitance formula (C = Q / V), the formula for capacitive reactance (Xc = 1 / (2πfC)), and the rules for capacitors in series and parallel circuits. Identify the known values, substitute them into the appropriate formulas, and solve for the desired quantity.

**What does 10uF mean on a capacitor?** “10uF” on a capacitor represents its capacitance value, which is 10 microfarads (uF). Microfarads are a unit of capacitance, and 1 microfarad is equal to 1/1,000,000 (one millionth) of a farad.

**What does 40 110 56 capacitor mean?** The numbers “40 110 56” do not represent the capacitance value of a capacitor in the conventional notation. Capacitors are typically labeled with a capacitance value and a voltage rating, such as “10uF 25V,” where “10uF” indicates the capacitance (10 microfarads) and “25V” indicates the voltage rating (25 volts).

**What does +- 6 mean on a capacitor?** “+- 6” is not a standard notation for a capacitor. Capacitors are usually labeled with capacitance values and voltage ratings, as mentioned in the previous example.

**What are the 4 types of capacitor?** The four main types of capacitors are:

- Ceramic Capacitors
- Electrolytic Capacitors (including Aluminum Electrolytic and Tantalum Electrolytic)
- Film Capacitors (including Polyester, Polypropylene, and Polycarbonate)
- Electrolytic Capacitors

**What is the math of capacitance?** The math of capacitance involves calculations related to the ability of a capacitor to store electric charge. Key formulas include C = Q / V (capacitance formula), C = εA / d (capacitance of parallel plates), and various formulas for capacitive reactance and impedance.

**What is the reciprocal of susceptance called?** The reciprocal of susceptance is called “admittance,” and it is represented by the symbol “Y.” Admittance is the inverse of susceptance and is related to the overall conductance of an electrical component or circuit.

**What is the relationship between reactance and susceptance?** Reactance (X) and susceptance (B) are components of impedance and admittance, respectively. They are inversely related: X = 1 / B and B = 1 / X.

**What is the symbol for susceptance?** The symbol for susceptance is “B,” and it is typically expressed in siemens (S).

**What is susceptance inversely proportional to?** Susceptance (B) is inversely proportional to capacitance (C) and inversely proportional to inductance (L). This means that as capacitance or inductance increases, susceptance decreases.

**What is the reciprocal of the capacitive reactance?** The reciprocal of the capacitive reactance (Xc) is called “capacitance” (C). The relationship is given by Xc = 1 / (2πfC), where f is the frequency.

**What is the relationship between reactance and impedance?** Reactance (X) is one component of impedance (Z). Impedance (Z) is the complex opposition to the flow of alternating current and consists of both resistive (R) and reactive (X) components. The relationship is Z = R + jX, where j represents the imaginary unit.

**What is the susceptance of a capacitance?** The susceptance of a capacitance is represented as “Bc” and is given by the formula: Bc = 1 / (2πfC), where f is the frequency and C is the capacitance.

**What is susceptance formula?** The formula for susceptance (B) is given by: B = 1 / X, where X is the reactance (either capacitive or inductive).

**What is the formula for reactance?** The formula for reactance depends on whether it is capacitive (Xc) or inductive (XL):

- For capacitive reactance (Xc): Xc = 1 / (2πfC), where f is the frequency and C is the capacitance.
- For inductive reactance (XL): XL = 2πfL, where f is the frequency and L is the inductance.

**What is the relationship between frequency and capacitance?** The relationship between frequency (f) and capacitance (C) is inversely proportional. As frequency increases, capacitive reactance (Xc) decreases, and vice versa.

**Is capacitance directly proportional to frequency?** No, capacitance (C) is inversely proportional to frequency (f). As frequency increases, capacitive reactance (Xc) decreases, leading to a lower impedance (Z).

**What is the relationship between frequency and capacitor?** The relationship between frequency (f) and capacitor behavior is that as frequency increases, the capacitive reactance (Xc) decreases, allowing the capacitor to pass higher-frequency signals more easily.

**What is equivalent capacitance equal to?** The equivalent capacitance (C_eq) in a parallel combination of capacitors is equal to the sum of the individual capacitances (C1 + C2 + C3 + …), whereas in a series combination, it is found using the reciprocal formula mentioned earlier: 1 / C_eq = 1 / C1 + 1 / C2 + 1 / C3 + …

**What is the equivalent capacitance rule?** The equivalent capacitance rule states that in a parallel combination of capacitors, the equivalent capacitance is the sum of the individual capacitances. In a series combination, the reciprocal of the equivalent capacitance is the sum of the reciprocals of the individual capacitances.

**Why is capacitance charge per voltage?** Capacitance represents the ability of a capacitor to store electric charge per unit voltage. It quantifies the ratio of the charge (Q) stored on the capacitor to the voltage (V) applied across it.

**What is the formula for capacitance work?** The formula for the work done (W) in charging a capacitor is: W = 1/2 * C * V^2, where C is the capacitance and V is the voltage.

**What is the formula for a capacitor?** The formula for capacitance (C) is: C = Q / V, where Q is the charge stored on the capacitor and V is the voltage across it.

**Does increasing voltage increase capacitance?** No, increasing voltage does not change the capacitance of a capacitor. Capacitance depends on the physical characteristics of the capacitor, such as its plate area, distance between plates, and the properties of the dielectric material.

**Why does capacitance increase when voltage decreases?** Capacitance does not increase when voltage decreases. Capacitance is a constant property of a capacitor determined by its physical attributes. Changing the voltage across a capacitor does not alter its capacitance.

**Does higher capacitance increase voltage?** No, higher capacitance does not increase voltage. Voltage is applied to a capacitor, and its capacitance remains a constant property based on its design.

**What happens if capacitance is too high?** If the capacitance in a circuit is too high for the intended application, it can lead to longer charging and discharging times, affecting the circuit’s response time. It may also require more energy to charge the capacitor to a desired voltage.

**Can capacitance act as a breaker?** Capacitance alone cannot act as a breaker. Breakers are typically devices designed to open or close electrical circuits in response to specific conditions, such as overcurrent or short circuits. Capacitors store energy but do not have the inherent function of breaking a circuit.

**Which factor does not affect capacitance?** The factor that does not affect capacitance is the voltage (V) applied across the capacitor. Capacitance depends on physical characteristics such as the area of the plates, distance between plates, and properties of the dielectric material.

**Why do capacitors block DC currents?** Capacitors block DC (direct current) currents because they store charge and maintain a voltage difference across their terminals. In a steady-state DC circuit, once the capacitor is fully charged, it prevents further flow of current.

**How do you charge a capacitor without a resistor?** Charging a capacitor without a resistor can be achieved by connecting it directly to a voltage source. However, this can lead to a high inrush current, potentially damaging the capacitor or the power source. Using a series resistor is a common practice to limit the current when charging capacitors.

**Do capacitors always have polarity?** No, not all capacitors have polarity. Some capacitors, like ceramic capacitors, are non-polar and can be connected in any orientation. However, electrolytic capacitors and tantalum capacitors are polarized and must be connected with the correct polarity to avoid damage.

**Can something have negative capacitance?** In conventional electrical circuits and materials, negative capacitance is not a common concept. Capacitance is typically defined as a positive scalar quantity representing the ability to store positive charge. Some advanced materials and devices, such as ferroelectric capacitors, may exhibit negative capacitance under certain conditions, but this is not part of standard electrical engineering.

**How can you tell if a capacitor is positive or negative?** You can tell if a capacitor is positive or negative by looking at its markings. Electrolytic and tantalum capacitors are typically marked with a polarity indicator, such as a “+” symbol or a colored stripe near the positive lead. Non-polar capacitors like ceramic capacitors do not have polarity markings and can be connected in either direction.

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