Question

1.Which of these is a kind of artificial magnet used in navigation?
a. Horseshoe magnet
b. Compass
c. Electromagnet
d. All of these


2.Magnetisation can be made more effective by ___________.
a. using a weaker magnet
b. rubbing for a longer time
c. using a stronger magnet
d. both (b) and (c)


3.A magnet is cut into two pieces. The broken sides are repelling each other. They are cut __________.
a. along the length
b. along the breadth
c. both (a) and (b)
d. none of these​

Answer 1

Answer:

1-b compass

2-d both

3-b along with breadth

Answer 2

Answer:

1.B.Compass

2.C.using a stronger magnet

3.A.along the length