Question

(b) any metal
(d) plastic
Choose the correct option.
1. Magnetic substances are made of
(a) only iron
(c) Iron, nickel and cobalt
2. The north pole of a magnet will attract
(a) the north pole of another magnet.
(b) the south pole of another magnet and pieces of iron.
(c) both the poles of a magnet and any magnetic materials.
(d) none of these
3. Repulsion between a magnet and another object indicates that
(a) the latter is made of a metal that is non-magnetic.
(b) the north pole of the former and the south pole of the latter are in contact with each other
(c) the other object is also a magnet.
(d) the other object is made up of magnetic substance,
4. To demagnetize a magnet, one can
(a) dip it in water.
(b) heat it for some time.
(c) strike it with a magnet.
(d) break it into two pieces.
5. If pole A of a magnet repels pole B of a second magnet, and pole B attracts pole C of a third magnet
what can be said about pole A and pole C?
(a) Both A and Care north poles.
(b) A and C are like poles
(c) A and C are unlike poles,
(d) Both A and Care south poles
6. Who suggested the electrical method of magnetisation?
(a) Sir Isaac Newton
(b) James P. Joule
(c) James Six
(d) Hans C. Oersted​

Answer 1

Yeh bohot bada hai ismese konsa

Answer 2

Answer:

1.(c)

2.(b)

3.(sorry don't know this answer)

4.(c)

5.(c)

6 (d)

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