An electron moving at right angles to a 0.1 t magnetic field experiences an acceleration of 6 × 1015 m. s-2. what is the speed of the electron? how much does its speed change in 1 ns (10-9 s)?

Explanation:

It is given that,

Magnetic field, B = 0.1 T

Acceleration,

Charge on electron,    

Mass of electron,    

(a) The force acting on the electron when it is accelerated is, F = ma

The force acting on the electron when it is in magnetic field,

Here,

So,

Where

v is the velocity of the electron

B is the magnetic field

v = 341250  m/s

or

So, the speed of the electron is

(b) In 1 ns, the speed of the electron remains the same as the force is perpendicular to the cross product of velocity and the magnetic field.

the answer for apex is the lowest

it doesn't. it was imagined up in the middle ages.