Physics - Current Electricity Question with Solution | TestHub
PhysicsCurrent ElectricityElectrical PowerMedium2 minQB
PhysicsMediuminteger
A heater is designed to operate with a power of 1000 W in a 100 V line. It is connected in combination with a resistance of and a resistance R to a 100 V mains as shown in Fig. What should be the value of R so that the heater operates with a power of 62.5 W ?
Answer:
5
Solution:
In second case If is the power of the heater
Solving for R , we find .
Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power
⏱ 2mℹ️ Source: QB
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