SATHEE: Electrostatics Question 31

Electrostatics Question 31

Question: A capacitor of capacity $C$ has charge $Q$ and stored energy is $W$ . If the charge is increased to $2 Q$ , the stored energy will be [MP PET 1990]

Options:

A) $2 W$

B) $W / 2$

C) $4 W$

D) $W / 4$

Show Answer

Answer:

Correct Answer: C

Solution:

$W = \frac{Q^{2}}{2 C}$

therefore $W^{'} = 4 W$

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Electrostatics Question 31

Question: A capacitor of capacity C has charge Q and stored energy is W . If the charge is increased to 2Q , the stored energy will be [MP PET 1990]

Options:

Answer:

Solution:

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Question: A capacitor of capacity $C$ has charge $Q$ and stored energy is $W$ . If the charge is increased to $2 Q$ , the stored energy will be [MP PET 1990]