TestHub
TestHub

Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical PowerEasy2 minPYQ_2019
PhysicsEasysingle choice

Two electric bulbs, rated at25 W, 220 V and100 W, 220 V,are connected in series across a220 Vvoltage source. If the25 Wand100 Wbulbs draw powersP1andP2respectively, then:

Options:

Answer:
D
Solution:

R1=V2P=220×22025=44×44

R2=220×220100=22×22

As resistance are in series current through them will be same.

P1P2=i2R1i2R2=44×4422×22=41

Therefore, among the given options, the option matching is P1=16 W, P2=4 W

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power
2mℹ️ Source: PYQ_2019

Doubts & Discussion

Loading discussions...