A potentiometer circuit has been set up for finding the internal resistance of a given

A Potentiometer Circuit Has Been Set Up For Finding The Physics QuestionA Potentiometer Circuit Has Been Set Up For Finding The Physics Question

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.

AddThis Website Tools
admin:

Related Questions

  1. The weight of a body on surface of earth is 12.6 N. When it is raised to a height
  2. The equiconvex lens has focal length f. If it is cut perpendicular to the principal
  3. In the Davisson and Germer experiment, the velocity of electrons emitted from the
  4. If angular momentum of a body is increased by 200% its kinetic energy will increase
  5. A spherical shell of radius 10cm is carrying a charge q. If the electric potential