Question

please send a solution fast. with proper explanation. (question is in attached image)​

Answer 1

Part 1:

Let R be the resistance of the electric lamp. In series total resistance = 5 + R

I =

1 =  

R = 5 ohm 

Part 2:

Total Resistance =  

I =  

Current in each branch  = 2 / 2 = 1 Amp (since both branches have same resistances, current divides equally)

V across Lamp + conductor = 10 V

V acoess Lamp = I × R = 1 * 5 = 5 Volt