wiz-icon
MyQuestionIcon
MyQuestionIcon
3
You visited us 3 times! Enjoying our articles? Unlock Full Access!
Question

Why is electric power transmitted over long distances at high voltage?

A
To minimize power loses due to Joule's heating
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
To maximize power loses due to Joule's heating
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
To balance power loses due to Joule's heating
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
None
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A To minimize power loses due to Joule's heating
For constant electric power, higher the voltage, lower is the current (as P=IV) through the wire. As power loss due to Joule's heating is proportional to I2, for a small current, power loss is also small. So, power is transmitted over long distances at high voltage to minimize power loses due to Joule's heating.

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Power Transmission
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon