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Q.

What is the magnitude of a point charge which produces an electric field of 2 N/C at a distance of 60 cm 1/4πε0=9×109N−m2/C2

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a

8×10−11C

b

6×10−10C

c

3×10−11C

d

2×10−12C

answer is A.

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Detailed Solution

E=14πε0⋅Qr2⇒2=9×109×Q(0.6)2⇒Q=8×10−11C

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