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2. Electric potential and capacitance — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics2. Electric potential and capacitance1 Mark
MCQ
A capacitor is kept connected to the battery and a dielectric slab is inserted between the plates. During this process
  • A
    No work is done
  • B
    Work is done at the cost of the energy already stored in the capacitor before the slab is inserted
  • ✓
    Work is done at the cost of the battery
  • D
    Work is done at the cost of both the capacitor and the battery
✓

Answer

Correct option: C.
Work is done at the cost of the battery
c
(c) In this process capacity increases, so battery supplies additional charge to capacitor.

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