Under what condition, the current drawn from the cell is maximum?
Current flowing through a circuit:
Mathematically, this can be represented as:
Here,
r is the internal resistance of the cell.
R is the external resistance.
Resistance and area:
The property of a conductor that prevents electric current from flowing through it is called resistance.
Mathematically, resistance and area can be represented as:
Here,
ρ is the resistivity constant.
L is the length.
a is the area of cross-section.
Therefore, resistance diminishes as the area of the cross-section rises, as does the rate of current flow.