A. 2.0 x 106 NC -1
B. 2. 5 x 106 NC -1
C. 1.0 x 107 NC -1
D. 4.0 x 107 NC -1

Correct Answer:

Option B – 2. 5 x 106 NC -1

Explanation

v = E x d, => E = v/d
i.e E 107/4 = 2.5 x 106 NC -1

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