Question

A horizontal conducting wire of length 0·lm carries a current of 4A. If the mass of
the wire is 7.5 x 10-5 kg and g = 10 ms"?, find the uniform magnetic induction re-
quired to support the weight of the wire,
1) 1.675 x 1-31
2) 1:775 x 1"'T
3) 1-875 1-'T
4) 1.975 x 1-31​

Answer 1

Explanation:

lm carries a current of 4A. If the mass of

the wire is 7.5 x 10-5 kg and g = 10 ms"?, find the uniform magnetic induction re-

quired to support the weight of the wire,

1) 1.675 x 1-31

2) 1:775 x 1"'T

3) 1-875 1-'T

4) 1.975