JEE Main 2008 + NEETMedium
Q.The resistance of a bulb filament is 100 Ω at room temperature. When glowing at full power, resistance is 400 Ω. The power of bulb is
a
4 times
b
2 times
c
same
d
1/4 times
Correct Answer: Option A
The correct solution involves applying the fundamental concept to derive the final value step by step...