Technician A says a multimeter is a meter that combines the functions of a voltmeter, an ammeter, and an ohmmeter. Technician B says impedance is best defined as the operating resistance of an electrical device. Who is correct?
A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question

​Technician A says a multimeter is a meter that combines the functions of a voltmeter, an ammeter, and an ohmmeter. Technician B says impedance is best defined as the operating resistance of an electrical device. Who is correct?
A)​A only
B)​B only
C)​Both A and B
D)​Neither A nor B

Quizplus · Accepted Answer

Technician A is correct because a multimeter indeed combines the functions of a voltmeter, an ammeter, and an ohmmeter, allowing it to measure voltage, current, and resistance, respectively. Technician B is also correct because impedance is a term used to describe the total opposition (including resistance and reactance) that a circuit presents to the flow of alternating current and can be considered the "operating resistance" of an electrical device in a broader sense.

​Technician a Says a Multimeter Is a Meter That Combines

Technician a Says a Multimeter Is a Meter That Combines