Which expression gives the magnitude of the magnetic force on a charge moving with…

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

Problem

Which expression gives the magnitude of the magnetic force on a charge

q

moving with speed

v

at an angle

\theta

to a uniform magnetic field of magnitude

B

? (a)

q v B\sin^{2}\theta

(b)

\dfrac{1}{2}\,q v B\sin\theta

(c)

q v B\sin\theta

(d)

q v B\bigl(1-\cos\theta\bigr)