An electron with kinetic energy k enters a region of (i) uniform magnetic field (ii) nonuniform magnetic field and comes out with kinetic energy k1 and k2 respectively. What is the relation between k1, k2 and k ?

Question

An electron with kinetic energy k enters a region of (i) uniform magnetic field (ii) nonuniform magnetic field and comes out with kinetic energy k1 and k2 respectively. What is the relation between k1, k2 and k ? (A) k 1> k 2> k (B) k 1= k 2> k (C) k 1= k 2= k (D) k 1< k 2< k

Tardigrade Admin · Accepted Answer

Any type of magnetic field cannot change kinetic energy of charged particle. So k1 = k1 = k

Q. An electron with kinetic energy $k$ enters a region of (i) uniform magnetic field (ii) nonuniform magnetic field and comes out with kinetic energy $k_{1}$ and $k_{2}$ respectively. What is the relation between $k_{1}, k_{2}$ and $k$ ?

$k_{1} > k_{2} > k$

$k_{1} = k_{2} > k$

$k_{1} = k_{2} = k$

$k_{1} < k_{2} < k$

Any type of magnetic field cannot change kinetic energy of charged particle. So
k₁ = k₁ = k

Q. An electron with kinetic energy k enters a region of (i) uniform magnetic field (ii) nonuniform magnetic field and comes out with kinetic energy k1​ and k2​ respectively. What is the relation between k1​,k2​ and k ?

k1​>k2​>k

k1​=k2​>k

k1​=k2​=k

k1​<k2​<k