A type of logic gate that has memory.

electronic technical interview questions Quiz…

Q: What is the primary function of a MOSFET?

To switch or amplify electronic signals. — MOSFETs act as electronic switches and amplifiers in circuits.

Q: Explain the difference between a PNP and NPN transistor.

PNP transistors require a negative base current to turn on, while NPN require a positive base current. — PNP transistors have a base current flowing *out*, NPN's current flows *in* (convention).

Q: What is the purpose of a diode in a circuit?

To allow current to flow in one direction only. — Diodes conduct current in a single direction (from anode to cathode).

Q: What is the relationship between voltage, current, and resistance according to Ohm's Law?

V = I * R — Ohm's law states that Voltage is equal to Current multiplied by Resistance.

Q: What is the function of a capacitor in a circuit?

All of the above. — Capacitors store energy, block DC, and can filter AC signals.

Q: What is the difference between AC and DC current?

DC flows in one direction, while AC reverses direction periodically. — DC flows in one direction; AC periodically changes direction.

Q: Explain the concept of impedance.

The opposition to current flow in an AC circuit, encompassing resistance and reactance. — Impedance is the opposition to AC current flow, including resistance and reactance.

Q: What is the purpose of a resistor in a circuit?

To limit the flow of current. — Resistors restrict current flow according to their resistance value.

Q: What are the three terminals of a BJT (Bipolar Junction Transistor)?

Base, Collector, Emitter — The three terminals are Base, Collector, and Emitter.

Q: What is the purpose of a ground in a circuit?

All of the above. — Ground serves as a reference, current return, and for safety.

Question 1 of 15

What is the primary function of a MOSFET?

MOSFETs act as electronic switches and amplifiers in circuits.

Question 2 of 15

Explain the difference between a PNP and NPN transistor.

PNP transistors have a base current flowing *out*, NPN's current flows *in* (convention).

Question 3 of 15

What is the purpose of a diode in a circuit?

Diodes conduct current in a single direction (from anode to cathode).

Question 4 of 15

What is the relationship between voltage, current, and resistance according to Ohm's Law?

Ohm's law states that Voltage is equal to Current multiplied by Resistance.

Question 5 of 15

What is the function of a capacitor in a circuit?

Capacitors store energy, block DC, and can filter AC signals.

Question 6 of 15

What is the difference between AC and DC current?

DC flows in one direction; AC periodically changes direction.

Question 7 of 15

Explain the concept of impedance.

Impedance is the opposition to AC current flow, including resistance and reactance.

Question 8 of 15

What is the purpose of a resistor in a circuit?

Resistors restrict current flow according to their resistance value.

Question 9 of 15

What are the three terminals of a BJT (Bipolar Junction Transistor)?

The three terminals are Base, Collector, and Emitter.

Question 10 of 15

What is the binary representation of the decimal number 10?

10 in binary is 1010.

Question 11 of 15

What is the purpose of a ground in a circuit?

Ground serves as a reference, current return, and for safety.

Question 12 of 15

What is the formula for calculating the power dissipated in a resistor?

Power dissipated can be calculated using any of the formulas V*I, I^2*R, or V^2/R.

Question 13 of 15

Explain the difference between series and parallel circuits.

Series circuits: single path, parallel circuits: multiple paths; they have opposite voltage/current characteristics.

Question 14 of 15

What is a flip-flop?

A flip-flop is a fundamental building block for memory storage in digital circuits.

Question 15 of 15

What is the Nyquist rate?

The Nyquist rate is the minimum sampling frequency to reconstruct a signal.

electronic technical interview questions Quiz