Question

A cell of internal resistance r is connected to an external resistance R. The current will be maximum in R, if

• A. $R = r$
• B. $R < r$
• C. $R > r$
• D. $R = r / 2$

Answer 1

Answer: (A)

$R = r$

Answer 2

Current through R is maximum when total internal resistance of the circuit is equal to external resistance.