Question

1. Consider an air-filled parallel plate capacitor with plate area A = 37.4 cm2 and gap...

1. Consider an air-filled parallel plate capacitor with plate area A = 37.4 cm2 and gap width d = 0.7 mm.

A. What is its capacitance?

B. The capacitor was connected to a 40-V battery, and disconnected after charging. What is the charge Q drawn from the battery?

The gap of the capacitor described in Problem #1 is now filled by the material with the dielectric constant of 4.2.

C. What is its capacitance?

D. The capacitor was connected to a 40-V battery, and disconnected after charging. What is the charge Q drawn from the battery?

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Answer #1

This question is solved by formula of capacitance

and charge by the multiplication of voltage and capacity

-12 12 NoLo D)

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