These problems were posted by Geena. Hope that we will be able to post the answers to these questions soon; each in a separate post. By the time visitors can attempt to post their answers as comments to this post. (Only selected posts will be published) Please note that the answers are not published until the [...]

## DERIVATION OF CELLS IN SERIES AND PARALLEL

jaipreet singh asked: “can you please tell me the **DERIVATION OF CELLS IN SERIES AND PARALLEL**?”

Answer: I am posting here the simplified treatment to calculate the current in a circuit with

## An Exemplary Viva Voce (CBSE Class XII Physics Practical)

(Assuming that the student was assigned the experiment “**To determine the internal resistance of a cell using potentiometer**“)

Examiner (E): What was the experiment allotted to you?

Students(S):