When a charged particle is acted on only by a magnetic force, its:
potential energy changes
its kinetic energy changes
total energy changes
energy does not change
A
total energy changes
B
potential energy changes
C
energy does not change
D
its kinetic energy changes
Open in App
Solution
Verified by Toppr
Magnetic force acting on a charge q travelling with velocity v is given by →F=q(→v×→B)
Since the force is perpendicular to the velocity, work done by force on the object is always zero.
Hence the total energy of the charged particle does not change.
Hence correct answer is option D.
Was this answer helpful?
0
Similar Questions
Q1
There is no change in the energy of a charged particle moving in a magnetic field although a magnetic force is acting on it.
View Solution
Q2
What happens to energy when a charged particle moving in a magnetic field although a magnetic force is acting on it ?
View Solution
Q3
How does magnetic force only affect direction of velocity and not kinetic energy? As kinetic energy = 1/2 MVsquare and depends on velocity.
View Solution
Q4
Assertion :There is no change in the energy of a charged particle moving in a magnetic field although a magnetic force is acting on it. Reason: Work done by centripetal force is always zero.
View Solution
Q5
Assertion :The energy of a charged particle moving in a uniform magnetic field does not change. Reason: Work done by the magnetic field on a charge particle is zero.