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School Physics Quiz : Magnetic Fields


Answer the following questions based on magnetic fields.

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Multiple choice

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1.

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 lines of force

  magnetic induction

  magnetic field

  Half-n-half Clue
 

2.

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

  induction

  force

  electrification

  Half-n-half Clue
 

3.

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

  True

  False

 

4.

During magnetic induction, the end of an unmagnetized magnetic substance nearer to the pole of the inducing magnet acquires _______.

  similar polarity

  no magnetism

  opposite polarity

  Half-n-half Clue
 

5.

Magnetic materials have millions of regions called _______, each of which acts as a tiny magnet.

  lines

  domains

  fields

  Half-n-half Clue
 

6.

The shape of the Earth's magnetic field is similar to that of a giant bar magnet placed at the Earth's center with its _______ pole toward the geographic north pole.

  north

  south

 

7.

The soft iron pieces placed across the poles of a magnet to prevent loss of magnetism are commonly called _______.

  magnetic meridians

  magnetic fields

  magnetic keepers

  Half-n-half Clue
 


 
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