Measuring alternating current (AC) voltage is a fundamental skill in electrical work and DIY projects. It involves using a voltmeter to determine the voltage difference between two points in a circuit.
AC voltage is important because it is the type of electricity used in most homes and businesses. It is also used in many industrial and commercial applications. Knowing how to check AC voltage can help you troubleshoot electrical problems, ensure the safety of electrical equipment, and perform various electrical tasks.