Question

With its leads on either side of a switch, a volt meter reads 120 volts. This indicates that...

a) The switch is open
b) The switch is closed
c) There's a short circuit
d) The battery is dead

Answer 1

When a voltmeter reads 120 volts with its leads on either side of a switch, it indicates that the switch is closed.

Step-by-step explanation:

A voltmeter measures the potential difference between two points in an electric circuit. In this case, when the voltmeter reads 120 volts with its leads on either side of a switch, it indicates that the switch is closed. When the switch is closed, the circuit is complete and an electric current can flow, resulting in the potential difference measured by the voltmeter.