Electrostatics Question 652

Question: The potentials of the two plates of capacitor are +10V and -10 V. The charge on one of the plates is 40C. The capacitance of the capacitor is

Options:

A) 2 F

B) 4 F

C) 0.5 F

D) 0.25 F

Show Answer

Answer:

Correct Answer: A

Solution:

[a] The potential difference across the parallel plate capacitor is $ 10V-( -10V )=20V. $ Capacitance$ =\frac{Q}{V}=\frac{40}{20}=2F. $



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