The output transformer used in a power amplifier is a                     transformer.

Related MCQs

• An amplifier without feedback has a voltage gain of 50, input resistance is 1 KΩ & Output resistance of 2.5KΩ.The input resistance of the current-shunt negative feedback amplifier using the above amplifier with a feedback factor of 0.2 is
• The output transformer used in a power amplifier is a/an                 transformer
• A class C amplifier has a tank circuit in the output. The amplifier is conducting only 28°. The output voltage is
• In a class A transformer-coupled power amplifier, winding resistance of the transformer determine(s) the dc load line for the circuit.
• The output power of a transistor amplifier is more than the input power due to additional power supplied by
• You have an application for a power amplifier to operate on FM radio frequencies. The most likely choice would be a             amplifier.
• The ratio output rms power in watts to the input dc power in watts in the different amplifier class is called .
• A form of class A amplifier having maximum efficiency of _          uses a transformer to couple the output signal to the load.
• Calculate the efficiency of a transformer-coupled class A amplifier for a supply of 15 V and an output of V(p) = 10 V.
• How many transistors must be used in a class B power amplifier to obtain the output for the full cycle of the signal?