NEET2014Physics-Electricity
NEET 2014 Physics Power and Energy MCQ Question
Type: MCQ-numerical-Medium-Class 12
Two cities are 150 km apart. Electric power is sent from one city to another city through copper wires. The fall of potential per km is 8 volt and the average resistance per km is 0.5 Ω. The power loss in the wire is
A
19.2 W
B
19.2 kW
C
19.2 J
D
12.2 kW
Correct Answer
Option B
Detailed Explanation
The power loss can be calculated using the formula P = I²R, where I is the current and R is the total resistance of the wire over the distance.
Found an issue with this question?