Physics - Current Electricity Question with Solution | TestHub
PhysicsCurrent ElectricityElectrical PowerMedium2 minPYQ_2006
PhysicsMediumsingle choice
Flash light equipped with a new set of batteries, produces bright white light. As the batteries wear out,
Options:
Answer:
D
Solution:
If the voltage is not sufficient to heat it to white hot temperature, the filament will become red. But the intensity will be very much reduced because of low voltage. But if the voltage is only reduced a little only intensity will be reduced. It can be (1) also.
Stream:AIIMSSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power
⏱ 2mℹ️ Source: PYQ_2006
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