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School Physics Quiz : Magnetic Fields


Answer the following questions based on magnetic fields.

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Multiple choice

Your Performance  

1.

It has been found that the earth steadily induces its own magnetic poles into a bar magnet kept in some place for a few weeks.

  True

  False

 

2.

The phenomenon due to which an unmagnetized magnetic substance behaves like a magnet due to the mere presence of another magnet (which is not actually in physical contact) is called

  magnetic field

  magnetic lines of force

  magnetic induction

  Half-n-half Clue
 

3.

Magnetic line of force is a _______ continuous curve in a magnetic field.

  closed

  open

 

4.

The arrow on a magnetic line of force is determined by the direction in which a free _______ pole would point in a magnetic field.

  south

  north

 

5.

It is possible to make a bar magnet having a north pole at each end and a south pole in the middle.

  True

  False

 

6.

If a piece of soft iron is placed in a magnetic field, it will get magnetized by influence or _______.

  electrification

  force

  induction

  Half-n-half Clue
 

7.

Magnetic lines of force attract each other.

  True

  False

 


 
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