Two identical cells each of emf E and internal resistance r are connected in parallel with an external resistance R. To get maximum power developed across R, the value of R is
(A) R = r/2 (B) R = r (C) R = r/3 (D) R = 2r
Two identical cells each of emf E and internal resistance r are connected in parallel with an external resistance R. To get maximum power developed across R, the value of R is
(A) R = r/2 (B) R = r (C) R = r/3 (D) R = 2r