NEET Physics (general) MCQ Question
Which of the following statements regarding the effect of inserting a dielectric in a capacitor is correct?
The capacitance increases when a dielectric is inserted while the capacitor is connected to a voltage supply.
The stored energy in the capacitor remains unchanged when a dielectric is inserted after disconnecting the voltage supply.
Inserting a dielectric reduces the potential difference across the capacitor when the voltage supply is connected.
The electric field inside the capacitor decreases when a dielectric is inserted with the supply disconnected.
Correct Answer
Detailed Explanation
According to the NCERT context, inserting a dielectric increases the capacitance when the voltage supply remains connected, which directly affects the stored energy as well.
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