Two identical batteries each of e.m.f 2V and internal resistance 1W are available to produce heat in an external resistance by passing a current through it. The maximum power that can be developed across R using these batteries is

(a) 3.2 W

(b) 2.0 W

(c) 1.28 W

(d) 8/9 W

Simran Bhatia , 12 Years ago

Grade 11