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Standard XII
Physics
Question

In a parallel plate capacitor, the region between the plates is filled by a delectric slab. The capacitor is connected to a cell and the slab is taken out.
  1. Some charge is drawn from the cell
  2. Some charge is returned to the cell
  3. The potential difference across the capacitor is reduced
  4. No work is done by an external agent in taking the slab out

A
Some charge is returned to the cell
B
Some charge is drawn from the cell
C
The potential difference across the capacitor is reduced
D
No work is done by an external agent in taking the slab out
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Solution
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∴ Some charge is returned to the cell .
∴ Option B is correct answer.

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