Question

the current flowing through a resistor connected in a circuit and the potential difference developed across it's end are as shown in the diagram by milliammeter and voltmeter a) what are the least count of these meter b) What is resistance of the resistor ​

Answer 1

Answer: 10 milliampere and 0.1 volt

Explanation:

Least count of a Milli ammeter is equal to hundred by 10 is equal to 10 milli ampere least count of voltmeter is equal to 1 by 10 is equal to 0.1 volt

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