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6. The unit of permittivity is
A. C2 N-1 m-2
B. C -2 N-1 m3
C. C2 N-1 m2
D. C4 N-1 m2
Explanation:
7. The unit of electric charge is
A. ampere
B. farad
C. volt
D. coulomb
Explanation:
8. Which one of the following is an insulator
A. copper
B. human body
C. ebonite
D. earth
Explanation:
9. Charges can be
A. created
B. destroyed
C. cannot be created
D. multiplied
Explanation:
10. Force between two similar charges is given by
A. q2/4πεor repulsive
B. q2/4πεr2 attractive
C. q/4πεor2 repulsive
D. q2/4πεor2 repulsive
Explanation:
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