MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Heating Effect of Current

The heat prod...

Question

The heat produced by passing an electric current through a fixed resistor is proportional to the square of :
(a) magnitude of resistance of the resistor
(b) temperature of the resistor
(c) magnitude of current
(d) time for which current is passed

Open in App

Solution

$H = I^{2} R t$

(c) magnitude of current

Suggest Corrections

thumbs-up

6

Similar questions

Q. A steady current of magnitude

I

A C

current of peak value

I

are allowed to pass through identical resistor for the same time. The ratio of heat produced in the two resistors will be :

Q. (a) Write down the formula for the heat produced when a current I is passed through a resistor R for time t.
(b) An electric iron of resistance 20 ohms draws a current of 5 amperes. Calculate the heat produced in 30 seconds.

Q. The rms value of an alternating current, which when passed through a resistor produces heat three times of that produced by a direct current of 2A in the same resistor, is

Q. How does the heat H produced by a current passing through a fixed resistance wire depend on magnitude of current I?

Q. What is the rms value of an alternating current which when passed through a resistor produces heat which is thrice that produced by a direct current of 2 A in the same resistor?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Heating Effect of Current_Tackle

PHYSICS

Watch in App

explore_more_icon

Explore more

Heating Effect of Current

Standard X Physics

Join BYJU'S Learning Program

CrossIcon