Current Electricity Charging Discharging Of Capacitors Question 609
Question: A battery of e.m.f. E and internal resistance r is connected to a variable resistor R as shown here. Which one of the following is true
[MP PMT 1995]
Options:
A) Potential difference across the terminals of the battery is maximum when R = r
B) Power delivered to the resistor is maximum when R = r
C) Current in the circuit is maximum when R = r
D) Current in the circuit is maximum when $ R»r $
Show Answer
Answer:
Correct Answer: B
Solution:
For power to be maximum External resistance = Equivalent internal resistance of the circuit
BETA
