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Solution


Q.

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

When a small compass is placed near a magnet, it will experience a force due to the magnetic field of the magnet. It is evidently observed due to a deflection in the north pole pointer of the compass. The path traced by the north pole pointer under the influence of a magnetic field is called the magnetic field line. The magnetic field lines are produced from the north pole of the magnet end at the south pole of the magnet. When the compass is moved around the field line, it always sets itself tangential along the curves.

 

(v) A strong bar magnet placed vertically above a surface. The magnetic field lines will be:
1 Only in a horizontal plane around the magnet.  
2 Only in a vertical plane around the magnet.  
3 Both in horizontal and vertical plane around the magnet.  
4 In all the planes around the magnet.  

Ans.

(4)