An electron is moving through a magnetic field. if the velocity of the electron is doubled, the magnetic force experienced by the electron will
a. stay the same
b. double
c. triple
d. quadruple

B. Double

Explanation:

As we know that the magnetic force on moving electron is given as

now we will have

here we know that the velocity of the electron is doubled and rest all components remains the same

so we will have

so the new force will be double that of initial force on the electron so correct answer will be

B. Double

from

explanation:

wind is defined by the direction it blows from.   for example, a wind blowing from north to south is called a northerly wind.

a displacement distance is size of displ