Questions
For comparing the e.m.f.'s of two cells with a potentiometer, a standard cell is used to develop a potential gradient along the wires. Which of the following possibilities would make the experiment unsuccessful?
detailed solution
Correct option is A
The emf of the standard cell must be greater than that of experimental cells, otherwise balance point is not obtained.Talk to our academic expert!
Similar Questions
In the given potentiometer circuit, the resistance of the potentiometer wire AB is R0. C is a cell of internal resistance r. The galvanometer G does not give zero deflection for any position of the jockey J. Which of the following cannot be a reason for this?
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