Charge on a capacitor is doubled. Its capacity becomes k times, where
The capacitance C of a capacitor is given by C = Q/V. If the charge Q is doubled but the voltage V remains unchanged, the capacitance C remains the same.
Thus, k = 1, and the correct answer is (b) k = 1.
Class 12th Science Physics NCERT MCQ Questions
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(b) k = 1
The capacitance of a capacitor is a property of the capacitor itself and does not change when the charge is altered. The capacitance is related to the physical characteristics of the capacitor, such as the area of the plates and the distance between them, not the amount of charge stored. Therefore, the capacitance remains the same, so k = 1.
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