Question

In fig 15.1, the terminals aa’ are used for _________

(a) measuring the current flow through the circuit

(b) measuring the power dissipation of the circuit

(c) measuring the resistance of the circuit

(d) measuring the voltage drop across the resistance

The question was posed to me in an international level competition.

I'm obligated to ask this question of Measurement of Low Resistance topic in division Measurement of Resistance of Electrical Measurements

Answer 1

Right option is (d) measuring the voltage drop across the resistance

The explanation is: The terminals aa’ are used for the measurement of the voltage drop across the resistance R. An voltmeter V is connected across the terminals aa’.