Why does the potential difference between electrodes of a cell decrease when the current drawn from the cell increases?
Answers
Due to its emf, a cell drives the charge round the circuit, even from lower potential to the higher potential. When the current flows through the cell, its electrolyte offers resistance to the flow of current, known as internal resistance. EMF is a cause while potential difference is an effect.
Answer:
The potential difference between electrodes of a cell decrease when the current is drawn from the cell due to the difference in Electromotive force (EMF).
Explanation:
When the current present produced in the set up is drawn outside circuit then the battery fastens it process and produces particles on each plate in high amount, and these particles requires high amount of energy to go through the electrolyte.
It takes a greater amount of the EMF to cause them to go quicker, thus the EMF staying for the outer circuit, i.e., the voltage over the terminals lessens and in turn leads to the decrease of potential difference.