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प्रश्न
Define the capacitance of a capacitor and its SI unit.
उत्तर
Capacitance
Capacitor is a device which is used to store charge. The capacity of a capacitor to store charge is called capacitance.
`C= "Q"/"V"`
SI unit of capacitor is farad.
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संबंधित प्रश्न
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- If this capacitor is connected to 100 V supply, what would be the charge on each plate?
- How would charge on the plates be affected, if a 3 mm thick mica sheet of k = 6 is inserted between the plates while the voltage supply remains connected?
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(i) electric field between the plates
(ii) capacitance, and
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Answer the following question.
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- Key K is kept closed and plates of capacitors are moved apart using insulating handle.
- Key K is opened and plates of capacitors are moved apart using insulating handle.
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- In A: Q remains same but C changes.
- In B: V remains same but C changes.
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- In B: Q remains same and hence V changes.
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