A) potential difference between them
B) mutual inductance between them
C) electric force between them
D) magnetic force between them
Correct Answer: D
Solution :
As shown in the figure, let the conductor \[Y\] carry current\[{{i}_{2}}\], situated in a magnetic field perpendicular to its length. It therefore, experiences a magnetic force, the magnitude of the force acting on a length \[l\] of \[Y\] is \[F={{i}_{2}}Bl={{i}_{2}}\left( \frac{{{\mu }_{0}}}{2\pi }\frac{{{i}_{2}}}{R} \right)l\] From Flemings left hand rule the direction of this force is towards\[X\]. Similarly, force per unit length of \[X\] due to \[Y\] is directed opposite to\[Y\]. Hence, the conductors attract each other.You need to login to perform this action.
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