A, B and C are voltmeters of resistance R, 1.5R and 3R respectively as shown in the figure. When some potential difference is applied between X and Y, the voltmeter readings are VA, VB and VC respectively. Then:
As we learnt in
Potential difference -
The voltage accross the terminals of a cell when it is supplying current to external resistance is known as Potential Difference .
In series Grouping -