Current in a conductor is a flow of negative charges - called electrons. Current is not used up in a circuit. It is measured in Amperes.

Voltage is a measure of the force pushing the current around the circuit.

Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.