will there be any change in amount of heat produced, if direction of current is changed . give reasons for your answer.
Answers
Answer:
No, there will not be any change in amount of heat produced, if direction of current is changed.
Explanation:
The amount of heat produced is due to the resistance and the resistance is not at all dependent on the resistance.
The flow of current is due to the flow of electrons. And the electrons produce kinetic energy. This increases temperature and heat is produced.
Answer:
If the direction of current changes, the magnitude remains unchanged and thus, the amount of the heat produced also remains constant.
As we know that the amount of heat produced in the current flowing wire in the time t is
Q= I²R t where Q is the heat produced, I is current, R is electrical resistance and t is time.
As all other quantities are the same, then Q ∝ I² so the magnitude remains constant even when current changes direction.