Current Electricity and Electrical InstrumentHard
Question
N cells each of e.m.f. E & identical resistance r are grouped into sets of K cells connected in series. The (N/K) sets are connected in parallel to a load of resistance R, then;
Options
A.Maximum power is delivered to the load if K =
B.Maximum power is delivered to the load if K =
C.Maximum power delivered to the load is 
D.Maximum power delivered to the load is 
Solution
Eeq = 
Eeq = KE
.........upto
erq = 
For maximum power req = R ⇒
= R ⇒ K = 
Pmax =

Pmax =
⇒ Pmax = 
Eeq = KE
For maximum power req = R ⇒
Pmax =
Pmax =
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
An electrolyte bulb marked 40 W and 200 V, is used in a circuit of supply voltage 100V. Now its power is...In the figure shown, the capacity of the condenser C is 2μF. The current in 2Ω resistance...If the position of an ideal voltmeter and the ideal ammeter are inter changed in a D.C. circuit, then...A wire of uniform resistance $\lambda\Omega/m$ is bent into a circle of radius $r$ and another piece of wire with length...In figure a meter-bridge is shown in its balance position. If the resistance of the wire of meterbridge is 1.0 ohm/cm th...