Current Electricity and Electrical InstrumentHard
Question
In the given potentiometer circuit length of the wire AB is 3m and resistance is R = 5Ω. The length AC for no deflection in galvanometer is
In the given potentiometer circuit length of the wire AB is 3m and resistance is R = 5Ω. The length AC for no deflection in galvanometer is
In the given potentiometer circuit length of the wire AB is 3m and resistance is R = 5Ω. The length AC for no deflection in galvanometer is
Options
A.2m
B. 1.8 m
C.dependent on r1
D.None of these
Solution
Potential gradient x = 
Here (x) (AC) = 3 ⇒ AC =
= 2m
Here (x) (AC) = 3 ⇒ AC =
= 2mCreate a free account to view solution
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