Electronics Quiz

Which of the following devices can operate as a switch or an amplifier?

• Diode

• Resistor

• Transistor

• Inductor

In a Zener diode, reverse breakdown occurs due to:

• Avalanche effect

• Low forward voltage

• Depletion layer reduction

• Tunneling of electrons

Which configuration of a BJT offers the highest voltage gain?

• Common Base

• Common Emitter

• Common Collector

• Emitter Follower

The output of a full-wave rectifier has a frequency that is:

• Same as input

• Half of input

• Double the input

• Zero

In an op-amp, the ideal value of input impedance is:

• 0 Ω

• 100 Ω

• 1 kΩ

• ∞

What is the binary equivalent of the decimal number 25?

• 11010

• 10101

• 11001

• 10011

Which logic gate gives a HIGH output only when both inputs are different?

• AND

• OR

• NAND

• XOR

The Boolean expression for a NAND gate is:

• A + B

• AB

• (A + B)'

• (AB)'

A flip-flop is a:

• Combinational circuit

• Sequential circuit

• Linear circuit

• Analog circuit

How many output lines does a 3-to-8 decoder have?

• 3

• 6

• 8

• 16