Answer to Question #316482 in Electric Circuits for Natz

Question

Objective: Distinguish between electromotive forces and potential differences.

Material: A circuit Diagram

Procedure:

1. Draw a circuit diagram with two batteries, 1 light bulb, and switch. You can apply your creativity provided that the appropriate symbols are used.
2. Label the electromotive force and the potential difference.

Question: How does an electromotive force differ from potential difference?

Answer 1

EMF :-

The energy delivered to the unit charge by a cell is known as the electromotive force EMF

Potential difference:-

the difference in potential between two points that represents the work involved or the energy released in the transfer of a unit quantity of electricity from one point to the other.

(2)

E=V-ir

E=emf of battery

V=battery voltage

it=potential drop