Current Electricity Charging Discharging Of Capacitors Question 583
Question: Two cells, e.m.f. of each is $ E $ and internal resistance $ r $ are connected in parallel between the resistance $ R $ . The maximum energy given to the resistor will be, only when
[MNR 1988; MP PET 2000; UPSEAT 2001]
Options:
A) $ R=r/2 $
B) $ R=r $
C) $ R=2r $
D) $ R=0 $
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Answer:
Correct Answer: A
Solution:
For maximum energy, we have External resistance of the circuit = Equivalent internal resistance of the circuit i.e. $ R=\frac{r}{2} $
BETA
