A-level Physics Core Practical: EMF and internal resistance

Alom Shaha and Christina Astin present the required practical for A-level Physics: finding the internal resistance and EMF of a cell.

Written & presented by Alom Shaha.
Directed & Edited by Jonathan Sanderson
Advisors: Christina Ashine, Carol Davenport, David Sang.

Produced by Physics Partners and NUSTEM, with assistance from the Ogden Trust.

[siphumelelebuthelezi]

how do i connect connect rheostat, power source and multimeters to measure current and voltage?

[ntombekhayalande]

Why does the circuit have a closed switch

[egfaomar]

What is the safety note for this experiment?

[Tarlochanmahajan]

current is in mA .. i think resistance of cell comes out less than .1 ohm

[naweyeeminn]

For taking pictures for the readings for both A and V momentarily, i doubt that its accurate. values could change depend on the person's reaction time. That wobbling the readings had me headache and never get the consistence readings..

[gowthamanand]

Sir, What is the value of external resistance??

[njoyausman]

The problem I have is that you people don't show us in details how your connections are done!!!!