What is Electromotive Force?

What is Electromotive Force?

Electromotive force definition

The tendency of electrons to move overcomes the resistance of conductor resistance to current and causes charge to flow in a closed conductor loop.

The electromotive force

The work done by a non-electrostatic force to move a unit of positive charge from the negative side of the power supply through the interior of the power supply to the positive side of the power supply.

Electromotive force direction

From the negative terminal of the power supply through the inside of the power supply to the positive terminal of the power supply, that is, the direction of the voltage at both ends of the power supply is opposite

Electromotive force calculation formula

E=W/q

Electromotive force classification

• Induced electromotive force

• Motility electromotive force

• Light generates electromotive force

• Piezoelectric electromotive force

• Thermoelectromotive force

Measurement method

• Voltmeter method of measurement

• Potentiometer measurement method