Question

What is the magnitude of magnetic force per unit length of a wire carrying a current of 5A and making an angle of 30° with the direction of uniform magnetic field of 0.1 Tesla ?

0.25 Nm

0.45 Nm

0.35 Nm

0.55 Nm

​

Answer 1

Answer:

ANSWER

I=10A,θ=45

o

,B=0.2T

∴F=IlBsinθ

∴

l

F

=IBsin45

o

=10×0.2×

2

1

=

2

2

Nm

−1