• No products in the cart.

Profile Photo

Power Consumption of Electric Heater (KVPY ’10)

An electric heater coonsists of a nichrome coil and under \(220V\)
consuming \(1KW\) power. Part of its coil burned out and it was reconnected after cutting off the burnt portion. The power it will consume now is:
(A) more than \(1KW\)
(B) less than\(1KW\), but not zero
(C) \(1KW\)
(D) 0kW


Part of coil is burnt. Then it was cut off. Hence resistance decreases. Hence there will be more current flow.
ELectric power $$ P=I^2R$$
Hence, power consumption will increase.

October 22, 2017

No comments, be the first one to comment !

Leave a Reply

Your email address will not be published. Required fields are marked *

© Cheenta 2017



FACEBOOKGOOGLE Create an Account
Create an Account Back to login/register