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2. (15 points) Consider an airgap capacitor and a capacitor with equivalent geom

ID: 1580617 • Letter: 2

Question

2. (15 points) Consider an airgap capacitor and a capacitor with equivalent geom- (a) The electric field inside the capacitor with dielectric is stronger, weaker, or (b) You use the same battery to charge each capacitor. The capacitor with etry but a dielectric material bet ween its conductive plates. the same as the electric field inside the air-gap capacitor. the dielectric has more, less, or the same voltage across it as the air-gap capacitor (c) You use the same battery to charge each c apacitor. The capacitor with the dielectric has more, less, or the same amount of charge as the air-gap capacitor.

Explanation / Answer

a)

The electric field inside di electric is weaker compared air gap capacitor.

The reason is opposite field will develop inside dielectric dur to induction.

b)Capacitor with dielectric is more than other one.

C'=kC

Where k is dielectric constant.

c)more

Q'=KQ

K Times more.

As Q=CV

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