Question

27. The current flowing through a resistor
connected in a circuit and the potential
difference developed across its ends are as
shown in the diagram by milliammeter and
voltmeter readings respectively:
(a) What are the least counts of these meters ?
(b) What is the resistance of the resistor ?​

Answer 1

Explanation:

Where is the circuit diagram man

Answer 2

Answer:

LC of ammeter =  0.2 / 10

= > 0.02 A

A = 0.02 A

LC of Voltmeter =  1 / 10

= > 0.1 V

V = 0.1 V

Current = 15 x 0.02 A = 0.3 A

Potential difference = 21 x 0.1 V = 2.1 V