The signal voltage gain of an amplifier, Av, is defined as:

More Questions from Transistors and Applications

• A certain amplifier has a voltage gain of 210. That gain expressed in decibels is 46.4 dB.
• A decrease in base current of a CE amplifier causes the voltage measured between the emitter and the collector to increase.
• Base currents are usually small because of the physical construction of the thin and lightly doped base.
• The beta of a BJT is the ratio of collector current to emitter current.
• A practical CE amplifier has the input on the base and the output taken off the emitter.
• An essential requirement of a feedback oscillator is a phase shift around the feedback loop of 360°.
• In an n-type JFET, current will flow when a positive voltage is applied to the drain and a negative voltage is applied to the source.
• The voltage measured from the collector to the emitter is the sum of the voltage base-emitter plus the voltage collector-base.
• The maximum peak-to-peak output voltage in the given circuit is 15 V.
• If the drain, source, and channel of a MOSFET are all a p-type material, and it operates in both modes, this is an n-channel D-MOSFET.

Discussion & Comments