A current of 1 ampere flows in a series circuit containing an electric lamp and a conductor of 5
B is lamp.
When both are connected in series,
I = 1 A
Using Ohm's law,
is the resistance of the lamp.
when a 10 ohm resistance is connected in parallel,
Total resistance is ,
Current in parallel connection,
Current through the first branch will remains same as V is same.
Voltage across the lamp will not change.