9th Class Physics Chapter 8 Test8. Magnetism

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Central part of atom is called:
   1. proton
   2. electron
   3. nucleus
   4. neutron
2. Earth magnetic field resemble with the field of:
   1. magnet
   2. bar magnet
   3. moon
   4. sun
3. The direction of magnetic field can be found:
   1. left hand rule
   2. right hand rule
   3. complete hand
   4. none of these
4. Proton consist of charge:
   1. positive
   2. negative
   3. zero
   4. all of these
5. Iron crystals are found in the beaks of:
   1. pigeons
   2. tiger
   3. lion
   4. all of these
6. Permanent magnetic are used:
   1. MRI
   2. electric motor
   3. electric fan
   4. None of these
7. Graphically the magnetic field is representative by:
   1. lines
   2. field lines
   3. normal lines
   4. imaginary line
8. In paramagnetic material:
   1. zero
   2. maximum
   3. non zero
   4. all of these
9. Our earth is a:
   1. magnet
   2. particle
   3. both a & b
   4. None of these
10. Magnetic field lines.
    1. are farthest at poles
    2. intersect each other
    3. are closed
    4. do not pass in vacuum