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FAQs on Short Notes: Capacitance - Short Notes for Electrical Engineering - Electrical Engineering (EE)

1. What is capacitance in electrical engineering?
Ans. Capacitance is the ability of a system to store an electric charge. It is measured in farads (F) and represents the ratio of the electric charge stored on a conductor to the voltage across it.
2. How is the capacitance of a capacitor calculated?
Ans. The capacitance of a capacitor is calculated using the formula C = Q/V, where C is the capacitance in farads, Q is the charge stored on the capacitor in coulombs, and V is the voltage across the capacitor in volts.
3. What factors affect the capacitance of a capacitor?
Ans. The capacitance of a capacitor is affected by the surface area of the plates, the distance between the plates, and the dielectric material between the plates. Increasing the surface area and decreasing the distance between the plates will increase the capacitance.
4. How does capacitance affect the behavior of a circuit?
Ans. Capacitance in a circuit can affect the time constant, voltage division, and frequency response. It can also be used to store energy and filter out certain frequencies in a circuit.
5. What are some common applications of capacitance in electrical engineering?
Ans. Capacitance is commonly used in filters, power factor correction, energy storage in batteries, tuning circuits in radios, and as a timing element in oscillators.
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