Electrostatics Question 281

Question: Each plate of capacitance C has partial value of charge [MP PMT 2003]

Options:

A) Q1+Q2+Q3+Q42C

B) Q2+Q32C

C) Q2Q32C

D) Q1+Q42C

Show Answer

Answer:

Correct Answer: C

Solution:

Plane conducting surfaces facing each other must have equal and opposite charge densities. Here as the plate areas are equal, Q2=Q3 . The charge on a capacitor means the charge on the inner surface of the positive plate (here it is Q2 ) Potential difference between the plates =chargecapacitance

=Q2C=2Q22C



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