APFIVE Effect of Permittivity on Electric Force
Two identical point charges are separated by a distance r in a medium with permittivity ε. If the medium is replaced with another having permittivity 4ε, how does the electric force between the charges change?
A
It decreases to 1/4 of its original value
B
It increases to 4 times its original value
C
It remains unchanged
D
It decreases to 1/2 of its original value
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