wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A current of 2A is passed through a conductor of resistance 10Ω for 5 seconds. The heat developed is

A
100 J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
50 J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1000 J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
200 J
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 200 J
Given:
Current I=2 A
Resistance R=10 Ω
Time t=5 s

The heat developed in any electric device for a given time is given by Joule's law of heating,
H=I2Rt
H=(2)2×10×5=200 J
So, the heat developed in the conductor is 200 J.

Hence, the correct option is (D).

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Heating Effect of Current_Tackle
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon