Why is a voltmeter always connected in parallel in an electric circuit?

An ideal voltmeter has infinitely large electrical resistance. Thus, to be introduced in parallel with the element on which to measure the voltage will not disturb the circuit. If the voltimeter is placed in serie, will interrupt the circuit because its resistance is too large.

Answered by Ryan2 | 2024-06-10

A voltmeter is not placed "in a circuit". It measures the potential difference between two points in the circuit, so it only touches the two points. Technically, that places the voltmeter in parallel with everything else in the circuit that's between those two points.

Answered by AL2006 | 2024-06-10

A voltmeter is connected in parallel with circuit components to accurately measure voltage because it shares the same potential difference. Its high internal resistance prevents it from drawing significant current, avoiding circuit disruption. This parallel connection ensures reliable voltage measurements without affecting circuit functionality.
;

Answered by Ryan2 | 2024-12-24