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Solution


Q.

Read the passage given below and answer the following questions from (i) to (v).

The space surrounding a magnet in which magnetic force is exerted, is called a magnetic field. The direction of magnetic field lines at a place can be determined by using a compass needle. A compass needle placed near a magnet gets deflected due to the magnetic force exerted by the magnet.

The north end of the needle of the compass indicates the direction of magnetic field at the point where it is placed. When the magnet shown in the diagram below is moving towards the coil, the galvanometer gives a reading to the right.

(v) The induced current is highest when:
1 direction of magnetic field is parallel to the direction of motion of coil.  
2 direction of magnetic field is opposite to the direction of motion of coil.  
3 direction of magnetic field is perpendicular to the direction of motion of coil.  
4 direction of magnetic field is in straight line to the direction of motion of coil.  

Ans.

(3)