If the plates of a parallel plate capacitor connected to a battery are moved close to each other, consider (I) charge stored increases, (II) energy stored increases, (III) capacitance increases, (IV) potential difference remains same, (V) product of charge and voltage increases. Select the appropriate correct statements.
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Question

If the plates of a parallel plate capacitor connected to a battery are moved close to each other, consider (I) charge stored increases, (II) energy stored increases, (III) capacitance increases, (IV) potential difference remains same, (V) product of charge and voltage increases. Select the appropriate correct statements.

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G1 Physics · Accepted Answer

Step 1: Battery keeps the potential difference V constant. Step 2: Parallel-plate capacitance C = ε₀A/d increases when d decreases. Step 3: Charge Q = CV increases, stored energy U = ½CV² increases, and QV increases. Step 4: Thus all five stated effects are correct.