Question

A charged particle is projected at angle theta in uniform magnetic field with speed v ,after time t the speed will be?
a. vsin theta
b. vcos theta
c. v
d. zero​

Answer 1

Answer:

I think it's safe to say the answer is v. In a uniform magnetic field, the speed of the particle does not change.

Answer 2

Answer:

speed remains same

(c) v

Explanation:

since the body is projected in uniform magnetic field therefore the centripetal force will produce uniform circular motion in which velocity is constant.

OR can say that ;

In a uniform circular motion, the direction of velocity is along a tangent drawn to the position of the particle on the circumference of a circle. Hence the direction of velocity goes on changing continuously, however, the magnitude of velocity is constant.