Question

the resistance or an electric bulb is higher when current passes through it and lesser when no current passes through it why?
​

Answer 1

Electric bulb produces heat to ionise the gas inside it and then light is generated when electrons comes at ground state.

When heat is generated at first, the resistance increases according to the equation...

R' = R(1 + a∆T). where a is the resistance coefficient of heat. The resistance increase is very small in normal conductors, but since temperature increase is very high in light bulb, it increases at a significant value.

plz mark it as brainliest

b..bye

#ANSWERWITHQUALITY

#BAL