key term - Ammeter

Definition

An ammeter is an instrument used to measure the electric current flowing through a circuit. It tells us how many charges are passing through it per unit time.

Related terms

Electromotive Force (EMF):

EMF is the potential difference or voltage produced by a source such as a battery or generator.

Voltmeter:

A voltmeter is an instrument used to measure the potential difference or voltage across two points in a circuit. It measures how much electrical energy is being transferred between those points.

Ohm's Law:

Ohm's Law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to its resistance.