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:A
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