Question

when a high resistance voltmeter is connected in direct across an electric blub it reading is 2v an electric cell is sending the current of 0.1 ampere in electric circuit A. draw circuit diagram. B find the resistance of electric bulb state the raw that is applied for making these calculations

Answer 1

ohm's law
v=i×r
i is current in the circuit
v is potential diff

Answer 2

Answer:-

i)given in attachment

ii)given in attachment

iii)The law applicable is ohm's law

Ohm's law is defined as,

The current flowing through the conductor is directly proportional to the voltage difference.

In mathematically term

Where, V = potential difference

R = resistance

I = current

We draw the voltage -current graph

This graph shows the straight line.

See the graph in attachment