Materials and Components

Q1: A vacuum parallel plate capacitor is charged. The field between the plates is 2 x 104 V/m. If the space between the plates is filled with a material having ∈r = 10, then the value of field in the dielectric will be

A 2 x 103 V/m

B
x 104 V/m

C
210 x 104 V/m

D 2 x 105 V/m

ANS:A - 2 x 103 V/m

D ∝ ∈rE. The flux density is the same. Since ∈r has become 10 times, E decreases by 10 times.



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