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 $
