Physics - Current Electricity Question with Solution | TestHub
PhysicsCurrent ElectricityElectrical instrumentEasy2 minQB
PhysicsEasysingle choice
The resistance per centimeter of a meter bridge wire is , with resistance in left gap. Balancing length from left end is at with resistance in right gap. Now the wire is replaced by another wire of resistance per centimeter. The new balancing length for same settings will be at
Options:
Answer:
D
Solution:
For first case:
... (i) For second case:
... (ii) From (i) and (ii), we get
also total length is constant.
Therefore, balance length doesn't change and
Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
