Physics - Current Electricity Question with Solution | TestHub
PhysicsCurrent ElectricityElectrical PowerMedium2 minQB
PhysicsMediumsingle choice
When a potential difference is applied across a wire of resistance , it dissipates energy at a rate If the wire is cut into two halves and these halves are connected mutually parallel across the same supply, the energy dissipation rate will become:
Options:
Answer:
D
Solution:
For first case:
...(i)
Now, equivalent resistance of the combination will be
For second case:
...(ii)
From (i) & (ii), we get
Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power
⏱ 2mℹ️ Source: QB
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