Current Electricity Charging Discharging Of Capacitors Question 311
Question: A potentiometer consists of a wire of length 4 m and resistance 10 W. It is connected to cell of emf 2 V. The potential difference per unit length of the wire will be
[Pb. PET 2002]
Options:
A) 0.5 V/m
B) 10 V/m
C) 2 V/m
D) 5 V/m
Show Answer
Answer:
Correct Answer: A
Solution:
Potential difference per unit length $ =\frac{V}{L}=\frac{2}{4}=0.5,V/m $
BETA
