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5. Assertion: The magnetic needle deflected in opposite direction when direction of 1
current in wire is reversed.
Reason: Magnetic needle is made from magnetic material.

6. An electromagnet is one which behaves as a magnet when current is ______ 1
a) Allowed to flow through
b) Not allowed to flow through
c) Stopped from flowing through it
d) None of the above.

7. Choose the incorrect statement out. 1
a) Electromagnet behaves as a magnet as long as current flows through the
wire.
b) If a magnet loses its magnetism is called as Temporary magnet.
c) Magnet that retains its magnetic strength for longer period of time is
called Permanent magnet.
d) Electromagnet is a permanent magnet.

8. _________piece is attracted by an electromagnet 1

a) Wood
b) Iron
c) Plastic
d) Rubber

9. A current carrying conductor produces ………………. 1
a) Only heat
b) Only magnetic field
c) Both heat & magnetic field
d) None of the above

10. The strength of electromagnet can decreased by 1
a) Increasing the number of turns in the coil
b) Decreasing amount of current flowing through the circuit
c) Using magnetic material core
d) None of the above

Subjective Questions:
11. State the magnetic effect of electric current. 2

12. Write two effects on magnetic field of increasing current in the wire. 2

13. What is an electromagnet? 2

14. Write three factors on which Strength of electromagnet depends. 3