The direction of deflection of an electron beam in a magnetic field can be determined by which of the following?
biot-savart law
coulomb’s law
right hand rule
ohm’s law

Right Hand Rule

Explanation:

When a charged particle travels in a magnetic field, it experiences a force whose magnitude is given by:

where

q is the charge of the particle

v is the velocity

B is the magnetic field strength

is the angle between the directions of v and B

The direction of the force can be determined by using the Right Hand Rule, as follows:

- index finger: this should be put in the direction of the velocity

- middle finger: this should be put in the direction of the magnetic field

- thumb: this will give the direction of the force -> however, for a negative charge (as the electron) the direction must be reversed, so it will be opposite.

when heated, the valance electrons increased their speed and transferred the heat from electron to electron.   i just took the test.