Electric field strength is calculated by dividing the force acting on an electric charge by the magnitude of the charge. The equation is E = F/q, where E represents electric field strength, F represents force, and q represents the charge.
The unit of measurement for electric field strength is newtons per coulomb (N/C). This represents the amount of force per unit charge acting on an electric charge.
Yes, electric field strength can stop an electron. When an electron enters an electric field, it experiences a force that can cause it to change direction or come to a complete stop depending on the strength and direction of the field.
The speed of an electron does not affect the electric field strength needed to stop it. The electric field strength is solely determined by the force acting on the electron and the magnitude of its charge, not its speed.
The electric field strength needed to stop an electron can be affected by the magnitude of the electric charge creating the field, the distance between the electron and the charge, and the presence of other charges or objects in the surrounding area that may alter the direction or strength of the field.