Question

An ammeter is connected in series with an unknown resistance and a voltmeter is connected across the terminals of the resistance. If this ammeter reads 1.2a and voltmeter reads 6v. What is the value of the resistance ? Assume ideal meters.

Answer 1

Answer:

The value of resistance is 5 ohm

Explanation:

Given as :

The reading of ammeter = 1.2 Amp

The voltmeter reading = 6 volt

Let The value of resistance = R ohm

According to question

Ammeter connected in series and voltmeter in parallel

∵ voltage = current × resistance

or, 6 v = 1.2 A × R

or, R = $\dfrac{6}{1.2}$

∴  R = 5 ohm

So, The value of resistance = R = 5 ohm

Hence, The value of resistance is 5 ohm . Answer