Question

The current flowing through a resistor and the p.d developed across its ends are shown in the given diagrams. Value of current is 180 mA and voltmeter reading is 0.9V

Answer 1

V=I*R

R=V/I

R=0.9/200=0.005 ohm...

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