MHT CET · Physics · Capacitance
Two parallel plate air capacitors of same capacity 'C' are connected in parallel to a battery of e.m.f. ' \(E\) '. Then one of the capacitors is completely filled with dielectric material of constant ' \(K\) '. The change in the effective capacity of the parallel combination is
- A \(\frac{\mathrm{C}}{(\mathrm{K}-1)}\)
- B \(\frac{\mathrm{KC}}{\mathrm{K}-1}\)
- C \(\mathrm{KC}+1\)
- D \(\mathrm{C}(\mathrm{K}-1)\)
Answer & Solution
Correct Answer
(D) \(\mathrm{C}(\mathrm{K}-1)\)
Step-by-step Solution
Detailed explanation
\( C_{initial} = C + C = 2C \) \( C_{final} = KC + C = C(K+1) \)
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