The diagram below shows two coils X and Y. The coil X is connected to

1.	The diagram below shows two coils X and Y. The coil X is connected to a battery S and a key K. The coil Y is connected to a galvanometer GWhen the key K is closed, State the polarity. 1. at the end B of the coil X. 2. at the end C of the coil Y. 3. at the end C of the coil Y if the coil Y is (a) moved towards the coil X, (b) moved away from the coil X
Answer» 1. Current at the end B of coil X is anti-clockwise therefore at this end there is a NORTH pole. 2. While closing the key, polarity at the end C of the coil Y will be north. There will be no polarity at the end C of the coil Y when the current becomes steady in the coil X. 3. (a) While the coil Y is moved towards the coil X, the polarity at the end C of the coil Y is NORTH. (b) While the coil Y is moved away from the coil X, the polarity at the end C of the coil B is SOUTH.

The diagram below shows two coils X and Y. The coil X is connected to a battery S and a key K. The coil Y is connected to a galvanometer GWhen the key K is closed, State the polarity. 1. at the end B of the coil X. 2. at the end C of the coil Y. 3. at the end C of the coil Y if the coil Y is (a) moved towards the coil X, (b) moved away from the coil X

Answer»

1. Current at the end B of coil X is anti-clockwise therefore at this end there is a NORTH pole.

2. While closing the key, polarity at the end C of the coil Y will be north. There will be no polarity at the end C of the coil Y when the current becomes steady in the coil X.

3. (a) While the coil Y is moved towards the coil X, the polarity at the end C of the coil Y is NORTH.

(b) While the coil Y is moved away from the coil X, the polarity at the end C of the coil B is SOUTH.

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