Current Electricity Ques 17
17. Potentiometer measures potential difference more accurately because
[2000 BCE]
(a) it measures potential in the open circuit
(b) it uses sensitive galvanometer for null deflection
(c) it uses high resistance potentiometer wire
(d) it measures potential in the closed circuit
Show Answer
Answer:
Correct Answer: 17.(a)
Solution:
Potentiometer measures potential difference more accurately because it measures potential in open circuit and hence error in potential due to internal resistance is removed.
BETA
