| ⇦ | 
| ⇨ |
A potentiometer circuit has been set up for finding the internal resistance of a given cell. The main battery, used across the potentiometer wire, has an emf of 2.0V and a negligible internal resistance. The potentiometer wire itself is 4m long. When the resistance R connected across the given cell, then has values of
(i) infinity (ii) 9.5Ω
The balancing lengths of the potentiometer wire are found to be 3m and 2.85m, respectively. The value of internal resistance of the cell is
Options
(a) 0.25Ω
(b) 0.95Ω
(c) 0.5Ω
(d) 0.75Ω
Correct Answer:
0.5Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - In an interference experiment, third bright fringe is obtained at a point
- Ohm’s law is not applicable except to
- The reddish appearance of the sun at sunrise and sunset is due to
- The point of suspension λ of a simple pendulum with normal time period T₁ is moving
- With the decrease of current in the primary coil from 2 amperes to zero value
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In an interference experiment, third bright fringe is obtained at a point
- Ohm’s law is not applicable except to
- The reddish appearance of the sun at sunrise and sunset is due to
- The point of suspension λ of a simple pendulum with normal time period T₁ is moving
- With the decrease of current in the primary coil from 2 amperes to zero value
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply