Repeat Prob. 10.18 if the headphones have a resistance of 1000 Ω.
Problem 10.18
The headphone amplifier in a battery-powered device has an output resistance of 28 Ω and is designed to deliver 0.1 W to the headphones. If the resistance of the headphones is 24 Ω, calculate the voltage and current required from the dependent voltage source (Av in our model) to deliver 0.1 W to the headphones. How much power is delivered from dependent source? How much power is lost in the output resistance?