Question

71. In figure. distance (d) between conductor carrying
currents I, and I, is varied. Which of the following graph
correctly represent the variation between F and 1/d?
​

Answer 1

Explanation:

Current carrying conductor will generate magnetic field in its surrounding which will have its impact on an another current carrying conductor.

Force per unit length between two current carrying conductor is given by,

F=U●I1×I2/2πd

where , d is the distance between the conductors.

We can see from the equation that force is inversely proportional to the distance between the two conductors.

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