AIIMS2000Physics-Electricity
AIIMS 2000 Physics Resistors in Circuits MCQ Question
Type: MCQ-numerical-Medium-Class 12
Two resistance filaments of same length are connected first in series and then in parallel. Find the ratio of power dissipated in both cases assuming that equal current flows in the main circuit.
A
1 : 4
B
4 : 1
C
1 : 2
D
2 : 1
Correct Answer
Option B
Detailed Explanation
Power dissipated in a resistor is given by P = I²R. In series, the resistance is higher, so less power is dissipated compared to parallel where the resistance is lower.
Found an issue with this question?