A charged particle begins to move from the origin in a region which ha

1.	A charged particle begins to move from the origin in a region which has a uniform magnetic field in the x-direction and a uniform electric field in the y-direction. Its speed is v when it reaches the point (x, y, z). v will depend (a) only on x (b) only on y (c) on both x and y, but not z (d) on x, y and z
Answer» Correct Answer is: (b) only on y Energy of the particle = work done by the electric field = electric field X displacement in the direction of the electric field

A charged particle begins to move from the origin in a region which has a uniform magnetic field in the x-direction and a uniform electric field in the y-direction. Its speed is v when it reaches the point (x, y, z). v will depend (a) only on x (b) only on y (c) on both x and y, but not z (d) on x, y and z

Answer»

Correct Answer is: (b) only on y

Energy of the particle = work done by the electric field = electric field X displacement in the direction of the electric field