A vacuum parallel plate capacitor is charged. The field between the plates is 2

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Question
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
Options
A. 2 x 10³ V/m
B. x 10⁴ V/m
C. 210 x 10⁴ V/m
D. 2 x 10⁵ V/m

Correct Answer

2 x 10³ V/m

Explanation

D ? ?_rE. The flux density is the same.

Since ?_r has become 10 times, E decreases by 10 times.

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