TestHub
TestHub

Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentEasy2 minPYQ_2022
PhysicsEasysingle choice

A teacher in his physics laboratory allotted an experiment to determine the resistanceGa galvanometer. Students took the observations for13deflection in the galvanometer. Which of the below is true for measuring value ofG?

Question diagram: A teacher in his physics laboratory allotted an experiment t

Options:

Answer:
B
Solution:

If a large resistance R is connected with a battery, then current will be approximately εR, and t will remain almost constant.

In 1st  case, only G is connected ig=i

In 2nd  case,

igR0=I-igSig2=SRg+Si

If ig2=13ig,SRg+Si=13i

Rg=2S

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument
2mℹ️ Source: PYQ_2022

Doubts & Discussion

Loading discussions...