Introduction to Electrical Engineering MCQs (Part-9)

What is the SI unit of electric charge?

A Volt
B Ampere
C Coulomb
D Ohm

What is the primary function of a magnetic field?

A Influence charged particles
B Increase resistance
C Store electric energy
D Block electric charge

What creates a magnetic field around a conductor?

A Capacitance
B Current
C Voltage
D Resistance

What is the relationship between electricity and magnetism?

A Magnetism causes current flow
B Unrelated
C Voltage causes magnetism
D Electricity generates magnetism

Which of the following materials is magnetic?

A Rubber
B Aluminum
C Iron
D Copper

What does the term “electric flux” refer to?

A Flow of charge through a conductor
B The quantity of electric field passing through an area
C Resistance in an electric field
D Energy stored in a conductor

What is the unit of magnetic flux?

A Weber
B Ampere
C Tesla
D Volt

What happens when a charged particle moves through a magnetic field?

A It loses energy
B It accelerates
C It is deflected
D It becomes neutral

Which of these is an example of an electrostatic phenomenon?

A Electric current
B Electromagnetic induction
C Magnetic force
D Electric charge interaction

What is the SI unit of magnetic field strength?

A Henry
B Tesla
C Weber
D Volt

What happens when a conductor is placed in a magnetic field with current flowing through it?

A The magnetic field collapses
B The conductor heats up
C A force is exerted on the conductor
D The conductor resists movement

What is the effect of an electric field on a charged particle?

A It accelerates the particle
B It decelerates the particle
C It changes the mass
D It increases the charge

Which of the following is NOT a source of electric field?

A Electromagnetic wave
B Magnetic field
C Stationary charge
D Moving charge

What is an example of a material that can be magnetized?

A Rubber
B Copper
C Wood
D Iron

What causes the deflection of a charged particle in a magnetic field?

A Magnetic force
B Electric force
C Lorentz force
D Gravitational force