Questions
Calculate the energy stored in the capacitor of capacitance 2μF, at the instant when the voltmeter 'V' gives a reading of 15 V and the ammeter A reads 15 mA. Resistance of voltmeter is unknown and ammeter is 999 .
detailed solution
Correct option is D
Since potential difference across AD and across CD is same, so A and C are on same potential. Therefore energy stored in the capacitor at given instant is zero.Talk to our academic expert!
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An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii of the wires are in the ratio of (4/3) and (2/3), then the ratio of the currents passing through the wires will be
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