Which one of the following expressions gives the magnitude of the force acting on a…

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

Which one of the following expressions gives the magnitude of the force

F

acting on a straight conductor of length

L

carrying current

I

placed in a uniform magnetic field of strength

B

, when the conductor makes an angle

\theta

with the field? (a)

F = B I L

(b)

F = B I L \sin \theta

(c)

F = B I L \cos \theta

(d)

F = B I L \sin^{2}\theta