Subject :NSO Class : Class 7
Bob is trying to turn rod P into a magnet by the following stroking method. He finds that this method does not work. Which two of the following could be the possible explanations?
(1) He should stroke rod P with the south-pole
instead.
(2) The bar magnet is not touching rod P.
(3) The bar magnet stroke rod P in more than one
direction.
(4) Rod P is not a magnetic material.
A1 and 2
B2 and 3
C2 and 4
D3 and 4
Ans 1:
Class : Class 7
Nope..it should be two and four
Ans 2:
Class : Class 7
It should be 2, 3 and 4 which is not given.