Current Electricity and Electrical InstrumentMedium
Question
Two identical batteries, each of emf 2V and internal resistance r = 1Ω are connected as shown. The maximum power that can be developed across R using these batteries is :-


Options
A.3.2 W
B.8.2 W
C.2 W
D.4W
Solution

Given circuit can be redraw as
for max power, R =
P = I2 R =
Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be...In the given circuit, it is observed that the current I is independent of the value of the resistance R6. Then, the resi...Read the following statements carefully :Y : The resistivity of semiconductor decreases with increase of temperature.Z :...In the given circuit at t = 0 switch is on. Then after how much time voltage across resistance is 37 volt :-...The current in resistance R at resonance is...