An external resistance R is connected to a cell of emf. E and internal resistance r. The current in the external circuit is maximum when
Answer & explanation
Correct answer: option 3
$\text{Current is maximum when } R = r$
An external resistance R is connected to a cell of emf. E and internal resistance r. The current in the external circuit is maximum when
Correct answer: option 3
$\text{Current is maximum when } R = r$