Calculate the efficiency of a class B amplifier for a supply voltage o – McqOptions

MCQOPTIONS

1.	Calculate the efficiency of a class B amplifier for a supply voltage of VCC = 20 V with peak output voltage of VL(p) = 18 V. Assume RL = 16.
A.	78.54%
B.	75%
C.	70.69%
D.	50%
Answer» D. 50%

Discussion

No Comment Found

Related MCQs

A ________ power amplifier is limited to use at one fixed frequency.
A heat sink provides ________ thermal resistance between case and air.
The ________ has the hottest temperature in a power transistor.
Improvement in production techniques of power transistors have ________.
The greater the power handled by the power transistor, ________ the case temperature.
In Fourier technique, any periodic distorted waveform can be represented by ________ the fundamental and all harmonic components.
The complementary Darlington-connected transistor for a class B amplifier provides ________ output current and ________ output resistance.
The fundamental component is typically ________ any harmonic component.
In class B operation, the current drawn from a single power supply has the form of ________ rectified signal.
In a class A transformer-coupled amplifier, the ________ the value of VCEmax and the ________ the value of VCEmin, the ________ the efficiency to (from) the theoretical limit of 50%.