Electricity and Magnetism Practice Quiz 04

Electricity and Magnetism Practice Quiz 04

Welcome to ECE Board Exam Practice Quiz for Electricity and Magnetism Fundamentals. This set of practice quiz 4 will test your competence on the theories, concepts and problem solving involving Electricity and Magnetism. The objectives and goals of this quiz is to help engineering students familiarize concepts and theories as well as develop problem solving skills when answering questions related to the Electricity and Magnetism Fundamentals.

Electricity and Magnetism Test Bank

In this section are compiled practice quiz for Electricity and Magnetism that could be able to enhance your knowledge and skills in your preparation for the ECE Board Exam. The goal is to add thousands of questions for you to be familiarized and hopefully help you to be prepared. I am looking forward that this practice quiz will give you an additional confidence in taking your upcoming Engineering Board Exam.

Guidelines:
  • Read and understand each question before choosing the best answer.
  • The correct answer will be reveal after you have chosen your answer for every questions
  • There is no time limit, answer the questions at your own pace.
  • Once all questions are answered, you will be shown your rating.
  • You have to get 70% of the total items to pass the quiz.
  • You can re-take the quiz as many times as you want or until you are satisfied of your rating.
  • Comment us your thoughts, scores, ratings, and questions about the quiz in the comments section below!

Choose the letter of the best answer in each questions.

All magnetic field originates from
moving electric charge
Iron atoms
Magnetic domain
Permanent magnets

Correct!

Wrong!

The ratio of the total flux (flux in iron path) to the useful flux (flux in air gap)
Leakage flux
Leakage current
Leakage coefficient
Leakage factor

Correct!

Wrong!

The air space between poles of magnets
Air gap
Free space
Vacuum
Atmosphere

Correct!

Wrong!

Defined as the flux density produced in it due to its own induced magnetism
Magnetic field intensity
Electric field intensity
Electromagnetic field intensity
Intensity magnetization

Correct!

Wrong!

The ratio between the intensity of magnetization produced in a substance to the magnetizing force producing it
Magnetic Reluctivity
Magnetic Resistivity
Magnetic susceptibility
Magnetic conductivity

Correct!

Wrong!

Steel is hard to magnetize because of its
Low permeability
High permeability
High density
High retentivity

Correct!

Wrong!

The magnetic field inside a solenoid
is zero
is uniform
increases with distance from the axis
decreases with distance from the axis

Correct!

Wrong!

The K shell or the first shell has how many permissible number of orbiting electrons?
1
2
3
4

Correct!

Wrong!

The magnetic field of a bar magnet most closely resembles the magnetic field of
a horseshoe magnet
a straight current- carrying wire
a stream of electrons moving parallel to one another
a current- carrying wire loop

Correct!

Wrong!

The emf produced in a wire by its motion across a magnetic field does not depend upon the
Diameter of the wire
Length of the wire
Orientation of the wire
Flux density of the field

Correct!

Wrong!

The uncharged particles which have no effect on its atomic charge.
Nucleons
Electrons
Protons
Neutrons

Correct!

Wrong!

Magnetic effects of the earth as a huge magnet with north and south poles.
Diamagnetic
Ferromagnetic
Terrestrial magnetism
Terrestrial ferromagnetism

Correct!

Wrong!

The simplest type of atom to exist is the _______ atom.
Helium
Hydrogen
Boron
Oxygen

Correct!

Wrong!

The emission of electrons from hot bodies is called
Radiation effect
Edison effect
Skin effect
Half effect

Correct!

Wrong!

When a wire loop is rotated in a magnetic field the direction of the induced emf changes one in every _______ revolution.
1/3
1/2
1/4
2/3

Correct!

Wrong!

A germanium atom has an atomic weight of 72. How many neutrons are there?
32
40
34
36

Correct!

Wrong!

Permeability means
The conductivity of the material for magnetic lines of force
The magnetization test in the material after exciting field has been removed
The strength of an electromagnet
The strength of the permanent magnet

Correct!

Wrong!

The tiniest element of matter
Atom
Proton
Electron
Neutron

Correct!

Wrong!

A group of magnetically aligned atoms is called
Range
Lattice
Domain
Crystal

Correct!

Wrong!

The quantity of magnetism retained by a magnetic material after withdrawal of the magnetizing force is called
Leftover magnetism
Hysteresis
Residual magnetism
Coercivity

Correct!

Wrong!

Permeance is analogous to
Conductance
Reluctance
Admittance
Resistance

Correct!

Wrong!

A magnetic material losses its ferromagnetic properties at a point called
Curie temperature
Inferred absolute temperature
Room temperature
Absolute temperature

Correct!

Wrong!

An effect which is generally used in the gaussmeter to measure flux density.
Skin effect
Magnetic effect
Hall effect
Flywheel effect

Correct!

Wrong!

Refers to the magnetic lines
Flux
Hysteresis
Current
Magnetomotive force

Correct!

Wrong!

A permanent magnet does not exert a force on
an unmagnetized iron bar
a magnetized iron bar
a moving electric charge
a stationary electric charge

Correct!

Wrong!

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Electricity and Magnetism – Quiz 04

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