Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentMedium2 minQB

PhysicsMediumsingle choice

For the post office box arrangement to determine the value of unknown resistance, the unknown resistance should be connected between (JEE 2004)

Answer:

Solution:

In the post office box, $BC$ , $C D$ and $B A$ are the three arms of known resistances (the ratio arms and the third arm $R$ ).

The unknown resistance is connected between $A$ and $D$ to complete the Wheatstone bridge.

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: QB

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