Question

Current can be measured effectively by making use of _________

(a) d.c. voltmeter

(b) a.c. ammeter

(c) d.c. ammeter

(d) a.c. voltmeter

I have been asked this question by my school principal while I was bunking the class.

My question is based upon Consideration in Selecting Voltmeter topic in section Electronic Instruments of Electrical Measurements

Answer 1

The correct option is (d) a.c. voltmeter

The best explanation: By making use of an a.c. voltmeter in series with resistance we can obtain the current value. We can also make use of the current probe method to obtain the value of the current without effectively disturbing the circuit.