The resistors in the circuits below each represent a light bulb. If all three circuits use the same size battery, which circuit will produce the most light?
1
I only % option
2
II only
3
III only
4
I, II, and III will produce the same amount of light
Official Solution
Correct Option:
(1)
The power dissipated in a resistor (which corresponds to the brightness of the light bulb) is given by:
where: is the voltage (which is the same for all circuits), and is the resistance of the circuit. In circuit I, the resistance is the lowest, so it will produce the most power and thus the most light.
About Power In Electric Circuits - IPU-CET
Power In Electric Circuits is a vital chapter for IPU-CET aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
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