Mathematics · Magnetism
Two long parallel conductors separated by a distance 'd' carry currents I1 and I2 in the same direction. They exert an attractive force 'F' on each other per unit length. If the current in one of them is doubled and its direction is reversed, and the distance between them is increased to 3d, what will be the new value of the force between them?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-F3
- 2-2F3✓
- 3F3
- 4-2F
Correct answer
-2F3
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