Current of 1 A is flowing through two parallel wires in the same …

MCQ

Current of 1 A is flowing through two parallel wires in the same direction and distance between the wires is 1 m . The mutual attractive force at unit length will be :

✓
$2 \times 10^{-7} Nm ^{-1}$
B
$4 \times 10^{-7} Nm ^{-1}$
C
$8 \times 10^{-7} Nm ^{-1}$
D
$10^{-7} Nm ^{-1}$

✓

Answer

Correct option: A.

$2 \times 10^{-7} Nm ^{-1}$

(a)$2 \times 10^{-7} Nm ^{-1}$

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