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What is capacitance? Video Lecture | Basic Physics for IIT JAM
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FAQs on What is capacitance? Video Lecture - Basic Physics for IIT JAM
| 1. What is capacitance? |  |
Ans. Capacitance is the ability of a component or system to store an electric charge. It is a measure of how much charge can be stored per unit voltage.
| 2. How is capacitance measured? | |
Ans. Capacitance is measured using a device called a capacitance meter or capacitance bridge. These instruments apply a known voltage to the capacitor and measure the resulting current flow, allowing the calculation of capacitance.
| 3. What factors affect the capacitance of a capacitor? | |
Ans. The capacitance of a capacitor is influenced by several factors, including the surface area of the plates, the distance between the plates (dielectric thickness), and the type of dielectric material used. Increasing the plate area or decreasing the plate separation increases the capacitance.
| 4. What is the unit of capacitance? | |
Ans. The unit of capacitance is the farad (F), named after the physicist Michael Faraday. However, the farad is a relatively large unit, so capacitors are typically measured in smaller units such as microfarads (μF) or picofarads (pF).
| 5. How does capacitance affect the behavior of circuits? | |
Ans. Capacitance plays a significant role in various electronic circuits. It can store electrical energy and release it when needed, acting as a temporary power source. Capacitors can also filter out certain frequencies, block direct current, and allow alternating current to pass. Their presence can affect the charging and discharging times of circuits and impact signal transmission.
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Dec 31, 2024 Last updated |
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