Electrostatics Question 113

Question: The mean electric energy density between the plates of a charged capacitor is (here q = charge on the capacitor and A = area of the capacitor plate) [MP PET 2002]

Options:

A) q22ε0A2

B) q2ε0A2

C) q22ε0A

D) None of the above

Show Answer

Answer:

Correct Answer: A

Solution:

Energy density =12ε0E2=12ε0(σε0)2=σ22ε0=q22ε0A2



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