Electrostatics Question 139

Question: A capacitor is charged to 200 volt it has 0.1 coulomb charge. When it is discharged, energy will be [MP PET 2003]

Options:

A) 1 J

B) 4 J

C) 10 J

D) 20 J

Show Answer

Answer:

Correct Answer: C

Solution:

Given therefore $ V=200volt, $

$ Q=0.1C $

As energy $ U=\frac{QV}{2},U=\frac{0.1\times 200}{2} $

$ =10Joule $



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