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WorksheetsANALOG ELECTRONICS AND CIRCUITS
Total questions: 10
Worksheet time: 20mins
The electrical circuit used to get smooth dc output from a rectifier circuit is called
Oscillator
Filter
Amplifier
Logic Gate
In a BJT, the current gain for the common collector is given as 100. Calculate the current gain of a common emitter
0.99
0.01
99
101
It is the ratio of the change in drain current to the change in the gate to source voltage keeping drain to source voltage constant
Dynamic drain resistance
Transconductance
Amplification factor
Pinchoff voltage
Which of the following is NOT the method of amplifier coupling?
Resistance Capacitance (RC) Coupling
Susceptance Coupling
Transformer Coupling
Impedance Coupling
A transistor can be made to operate as a switch by operating it in which of the following regions?
Active region
Cut-off region
Active region , Saturation region
Saturation region, Cut-off region
Which of the following BJT configuration has highest power gain?
Common Collector
Common Emitter
Common Base
None of the above
For a BJT, the common base current gain is 0.98 and base current is 120 microammeter its common - emitter gain will be:
98
56
49
118
The maximum efficiency of a half-wave rectifier is
33.3%
40.6%
6606%
72.9%
For a transistor β = 45 and voltage drop across 1kΩ resistor, which is connected in the collector circuit is 1V. Find base current for CE configuration.
22mA
0.022mA
0.22mA
2.2mA
Which of the following devices is used in voltage regulators and voltage limiters as a fixed reference voltage in the network?
PIN diode
Varactor diode
Zener diode
Tunnel diode
