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The magnetic induction at a point P which is at a distance 4cm from a long current carrying wire

is 10-8 tesla. The field of induction at a distance 12cm from the same current would be

(A) 3.33 *10^9 tesla

(B) 1.11*10^4 tesla

(C) 3 *10^3 tesla

(D) 9 *10^2 tesla

1
by yashrajsah

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