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Question
Three identical coils X, Y and Z are placed with their planes parallel to each other. Coils X and Z carry current as shown in the figure. Coils X and Y are fixed and coil Z is moved towards Y, then ______.
Options
current induced will be first clockwise and then anticlockwise.
current in Y is in anticlockwise sense.
current will not be induced in Y
current in Y is in clockwise sense.
Solution
Three identical coils X, Y and Z are placed with their planes parallel to each other. Coils X and Z carry current as shown in the figure. Coils X and Y are fixed and coil Z is moved towards Y, then current in Y is in clockwise sense.
Explanation:
Coil Z has an anticlockwise current when viewed from the right side. As a result, the coil's right face becomes the north pole, while the left face becomes the south pole. As the south face approaches coil Y, the right face of coil Y becomes a south pole, repelling it. As a result, the current flowing through it will be clockwise as seen from the left side.
