Question

(A nail is magnetized as shown in the figure. Which polarity will develop at A and B?
A) A - North, B-North
B) A - North, B-South
C) A - South, B South
D) A - South, B-North
2.It is advised to keep the magnets away from television, mobiles, CD and computers Explain why?
Task 3:
1. Three identical iron bars are kept on a table. Two out of three bars are magnets. In one of the magnet the North-South poles are
marked. How will you find out which of the other two bars is a magnet? Identify the poles of this magnet.

What will happen to the position of its needle if you bring a bar magnet near it? Draw a diagram to show the effect on the needle
on bringing the bar magnet near it. Also draw the diagram to show the effect when the other end of the bar magnet is brought near it.

Answer 1

1 answer

option B

2 answer

Electrical appliances such as television, mobiles, CD, and computers have magnetic storage devices as well as other electrical circuits inside them. When we bring external magnets near these appliances, the external magnets will interfere with the components of the appliances and can damage them.