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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