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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.

 

(iv) Which of the following is incorrect regarding magnetic field lines
1 The field lines are directed N to S inside the magnet.
 
2 The crowdedness of the field lines shows the strength of the magnet.
 
3 The field is tangent to the magnetic field line.
 
4 Magnetic field lines are closed and continuous curves.
 

Ans.

(1)