Physics · Electrostatic Potential
हिन्दीGiven below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): To store a large amount of charge on a capacitor without sparking, the capacitor should have a large capacitance. Reason (R): A large capacitance ensures that for a given charge \( Q \), the potential difference \( V \) and the resulting electric field remain below the dielectric breakdown limit of the medium. In the light of the above statements, choose the correct answer from the options given below:
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Correct answer · Option A
Both (A) and (R) are true and (R) is the correct explanation of (A).
Explanation
Since \( V = Q/C \), a large \( C \) keeps \( V \) and the surrounding electric field small for a given \( Q \), preventing the air from ionizing and discharging. Thus, Reason correctly explains Assertion.