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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.

 

(ii) Magnetic field lines can be used to determine:
1 the shape of the magnetic field.  
2 only the direction of the magnetic field.  
3 only the relative strength of the magnetic field.  
4 both the direction and the relative strength of the magnetic field.  

Ans.

(4)