FREE Bachelor of Electrical Engineering Basic Electrical Questions and Answers

Question 1

In an AC circuit, which of the following accurately depicts the average value?

Accepted Answer

RMS value/Form factor

Answer

RMS value*Peak factor

Answer

RMS value/Peak factor

Answer

RMS value*Form factor

Question 2

Who developed an approach to measure current and defined electric current?

Accepted Answer

Andre-Marie Ampere

Answer

Alessandro Antonio Volta

Answer

Nikola Tesla

Answer

Michael Faraday

Question 3

How many electrons are required to produce a 2 Coulomb electric charge?

Accepted Answer

12.48 * 1018 electrons

Answer

3.204 * 1019 electrons

Answer

6.24 * 1018 electrons

Answer

1.602 * 1019 electrons

Question 4

Which of the following statements regarding direct current is true?

Accepted Answer

Can be transported to larger distances with less loss in power

Answer

Flows in one direction

Answer

Magnitude is constant

Answer

Frequency is zero

Question 5

Who was the first person to experience the power of magnetism?

Accepted Answer

Hans Christian Orsted

Answer

Gustav Robert Kirchhoff

Answer

Alexander Graham Bell

Answer

Michael Faraday

Question 6

Which of the following statements regarding electrical conductivity is true? Which of the following statements regarding electrical conductivity is true?

Accepted Answer

It is the ratio of current density to the electric field

Answer

It is the product of current density and electric field

Answer

It is the reciprocal of the product of current density and electric field

Answer

It is the ratio of the electric field to current density

Question 7

What is the cause of the current's flow?

Accepted Answer

Electrons

Answer

Nucleus

Answer

Protons

Answer

Protons and Electrons

Question 8

Which of the following must be zero according to KCL?

Accepted Answer

Algebraic sum of currents entering and leaving a junction

Answer

Algebraic sum of voltages across the input and output

Answer

Algebraic sum of currents in closed-loop

Answer

Algebraic sum of power in closed-loop

Question 9

How many possible directions may the electric field have at one location?

Accepted Answer

One

Answer

Two

Answer

Zero

Answer

Many

Question 10

When there are more secondary turns than main turns in a transformer, which of the following will happen?

Accepted Answer

The voltage gets stepped up

Answer

The power gets stepped down

Answer

The voltage gets stepped down

Answer

The power gets stepped up