CBSE 12th Physics (Term 1) Paper 2021-22

MCQ (Single Correct Answer)

+0.77

-0

A variable capacitor is connected to a 200 V battery. If its capacitance is changed from 2 $$\mu$$F to X $$\mu$$F, the decrease in energy of the capacitor is 2 $$\times$$ 10^$$-$$2 J. The value of X is -

1 $$\mu$$F

2 $$\mu$$F

3 $$\mu$$F

4 $$\mu$$F

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