1.

Two charges 6 × 10-8 coulombs and 3 × 10-5 coulombs are located 20 cm apart in a vacuum. If these charges are separated by the same distance in kerosene having a relative permittivity of 2, then the ratio of the force of interaction between them in kerosene to the forces in a vacuum is:

A. 0.81
B. 1.62
C. 0.41
D. 0.5
Answer» E.


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