2019:
The force acting on the electron is given by:
F = q v B
where
- q is the charge of the electron
- v is the velocity of the electron
- B is the magnetic field
In this case, we have
- q = 1.6 * 10^-19 C
- v = 10^7 ms^-1
- B = 10 A
So, the force acting on the electron is:
F = (1.6 * 10^-19 C) (10^7 ms^-1) (10 A) = 1.6 * 10^-12 N
2018:
The torque acting on the coil is given by:
τ = IA B sin θ
where
- I is the current in the coil
- A is the area of the coil
- B is the magnetic field
- θ is the angle
