state whether an electrical heater will consume more electricity energy or less electrical energy per second, when the length of its heating element is reduced. give reasons for your answer
Answers
Answered by
17
energy in watt =I*V. I=V/R. thus. power=V^2 /R. When the length is reduced R decreases. Hence power increases
Answered by
1
Answer:
By reducing the length of element the resistance will decrease.
Power is inversely proportional to resistance. So, this will result in more consumption of energy.
Similar questions