Electrostatics Question 114

Question: A charge of 40μC is given to a capacitor having capacitance C=10μF . The stored energy in ergs is [CPMT 2002]

Options:

A) 80×106

B) 800

C) 80

D) 8000

Show Answer

Answer:

Correct Answer: B

Solution:

U=Q22C=(40×106)22×106×10=16×10102×105=8×105J

=8×105×107=800erg



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