Question

When to a current is passing through a conductor in 10 seconds 80g heat is produced then the find the residents of conductor

Answer 1

The heat generated due to flow of electric current is-

H= I2 Rt

Given, current I= 2 amp

Heat H= 80 J

and time t = 10 sec

So, from the above formula,the resistance R =H /I2 t

= 80/4×10 = 2 Ω