Three identical coils C_1, C_2 and C_3 are pl | vedclass

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(B) The magnetic field at the center of $C_2$ due to $C_1$ (anti-clockwise) is directed towards the right,and the magnetic field due to $C_3$ (clockwi

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$C_1$ moves towards $C_2$ and $C_3$ moves away from $C_2$

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(B) The magnetic field at the center of $C_2$ due to $C_1$ (anti-clockwise) is directed towards the right,and the magnetic field due to $C_3$ (clockwise) is directed towards the left. Since the coils are identical and $C_2$ is midway,the net magnetic field at $C_2$ is zero. If $C_1$ moves towards $C_2$,the magnetic field from $C_1$ at $C_2$ increases (directed right). To oppose this,$C_2$ induces a current to create a magnetic field towards the left (clockwise). If $C_3$ moves away from $C_2$,the magnetic field from $C_3$ at $C_2$ decreases (directed left). To oppose this decrease,$C_2$ induces a current to create a magnetic field towards the left (clockwise). Thus,if $C_1$ moves towards $C_2$ and $C_3$ moves away from $C_2$,the net flux change induces a clockwise current in $C_2$.

Three identical coils $C_1, C_2$ and $C_3$ are placed coaxially. $C_2$ is exactly midway between $C_1$ and $C_3$. $C_1$ carries current $I$ in an anti-clockwise direction,while $C_3$ carries current $I$ in a clockwise direction. An induced current flows through $C_2$ in a clockwise direction when:

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