Analog Circuits Question bank

A single stage transistor amplifier contains ……………. and associated circuitry

• Two transistors
• One transistor
• Three transistor
• None of the above

The phase difference between the output and input voltages of a CE amplifier is ………………..

• 180 degree
• 0 degree
• 90 degree
• 270 degree

It is generally desired that a transistor should have …………….. input impedance

• Low
• Very low
• High
• Very high

When an a.c. signal is applied to an amplifier, ,the operating point moves along …………….

• d.c. load line
• a.c. load line
• both d.c. and a.c. load lines
• none of the above

If the collector supply is 10V, then collector cut off voltage under d.c. conditions is ………….

• 20 V
• 5 V
• 2 V
• 10 V

The input capacitor in an amplifier is the ……………….. capacitor

• Coupling
• Bypass
• Leakage
• None of the above

The point of intersection of d.c. and a.c. load lines is called ……………..

• Saturation point
• Cut off point
• Operating point
• None of the above

The slope of a.c. load line is ……………… that of d.c. load line

• The same as
• More than
• Less than
• None of the above

If a transistor amplifier draws 2mA when input voltage is 10 V, then its input impedance is ………..

• 20 kΩ
• 2 kΩ
• 10 kΩ
• 5 kΩ

The purpose of capacitors in a transistor amplifier is to ………………

• Protect the transistor
• Cool the transistor
• Couple or bypass a.c. component
• Provide biasing