Potential difference and emf
A circuit can conduct charge when it is linked and complete. If there is no cause or force
to propel the charge around the circuit, it will not move. Imagine that the charge is at
rest and must be propelled. This indicates that effort is required to transfer the charge.
The charges are subjected to a force that works to shift them. The battery in the circuit
supplies the force.
The potential energy in a battery can be used to shift the charge in a closed circuit by
exerting force on it. This potential energy can then be transformed into electrical energy.
What is a voltmeter?
A voltmeter is an instrument for measuring the potential difference between two points
in an electric circuit.
The symbol for a voltmeter is:
A circuit can conduct charge when it is linked and complete. If there is no cause or force
to propel the charge around the circuit, it will not move. Imagine that the charge is at
rest and must be propelled. This indicates that effort is required to transfer the charge.
The charges are subjected to a force that works to shift them. The battery in the circuit
supplies the force.
The potential energy in a battery can be used to shift the charge in a closed circuit by
exerting force on it. This potential energy can then be transformed into electrical energy.
What is a voltmeter?
A voltmeter is an instrument for measuring the potential difference between two points
in an electric circuit.
The symbol for a voltmeter is:
