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Physics · PYQ NEET UG 2024
हिन्दीIf the plates of a parallel plate capacitor connected to a battery are moved close to each other, then A. the charge stored in it, increases. B. the energy stored in it, decreases. C. its capacitance increases. D. the ratio of charge to its potential remains the same. E. the product of charge and voltage increases. Choose the most appropriate answer from the options given below:
Correct answer · Option 4
A, C and E only
Explanation
When distance \( d \) decreases, capacitance \( C = \frac{\varepsilon_0 A}{d} \) increases. Since voltage \( V \) is constant (connected to battery), charge \( Q = CV \) increases, energy \( U = \frac{1}{2} C V^2 \) increases, and the product \( Q \times V \) increases.
