Electrical Engineering Quiz

In the SI system, what is the unit of electric charge?

• Ampere

• Volt

• Coulomb

• Tesla

Which of the following is NOT a common type of transistor configuration?

• Common collector (CC)

• Common emitter (CE)

• Common base (CB)

• Common gate (CG)

The wavelength of an electromagnetic wave is inversely proportional to its:

• Speed

• Energy

• Frequency

• Amplitude

What is the barrier potential (also known as contact potential) in a P-N junction?

• The voltage needed to reverse bias the junction and prevent any current from flowing.

• The voltage across the junction that prevents the flow of charge carriers when no external voltage is applied.

• The voltage that causes the P-type material to become negatively charged.

• The voltage required to forward bias the junction and allow current to flow.

Which of the following is a key characteristic of an extrinsic semiconductor?

• It is a pure semiconductor.

• It has a very high resistivity.

• It contains intentionally added impurities to alter its electrical properties.

• It is made from a single element.

Which terminal of a FET is responsible for controlling the electric field that modulates the current flow between the Drain (D) and Source (S)?

• Drain (D)

• Gate (G)

• Source (S)

• Base (B)

Which of the following is true about Alternating Current (AC)?

• Its frequency is always 60 Hz worldwide.

• AC is unsuitable for power transmission.

• It reverses direction periodically.

• It flows in only one direction.

What is the basic advantage of the complementary nature of NMOS and PMOS transistors in CMOS circuits?

• Low power consumption due to minimal current draw when idle

• Reduced voltage levels

• Higher processing speed

• Increased current

In a JFET, what does the depletion region primarily control?

• The voltage gain of the transistor.

• The width of the conducting channel and the current flowing through it.

• The resistance of the device.

• The capacitance between the Drain and Source terminals.

What does electromotive force (EMF) represent in an electrical circuit?

• The resistance to the flow of current.

• The force that moves electrons through the circuit.

• The rate at which current flows through the circuit.

• The energy supplied to an electric circuit per unit of electric charge.