WorksheetsQuiz on Magnetism and Electro-Magnetism
Total questions: 15
Worksheet time: 8mins
What do lines of flux represent in magnetism?
Visible lines of force
Unseen lines that form closed loops
Open-ended lines of energy
Lines of gravitational pull
What happens when two like poles of magnets are brought close to each other?
They attract each other.
They repel each other.
They neutralize each other.
They have no effect on each other.
What is the convention regarding lines of flux?
Lines of flux can cross each other.
Lines of flux are always straight.
Lines of flux cannot cross.
Lines of flux are visible.
What is the main topic of Unit 202 Handout 9?
Chemical reactions
Electro-magnetism
Thermal dynamics
Gravitational forces
What is produced when an electrical current flows through a conductor?
A gravitational field
A magnetic field
A sound wave
A light beam
What is the direction of the magnetic field produced by a current?
Linear along the conductor
Circular around the conductor
Randomly oriented
Vertical to the conductor
What happens when conductors are wound into a coil or solenoid?
The magnetic effect decreases.
The magnetic field becomes weaker.
The magnetic effect increases and produces a field similar to a bar magnet.
The conductors lose their magnetic properties.
What is a contactor?
A type of resistor.
A type of relay that can handle high power.
A type of capacitor.
A type of battery.
What does a solenoid produce when an electric current is passed through it?
Heat.
Light.
A magnetic field.
Sound.
What is the term used for a coil designed to produce a uniform magnetic field in a volume of space?
Resistor.
Capacitor.
Solenoid.
Battery.
What is the effect of winding conductors into a solenoid?
It decreases the magnetic field.
It produces a magnetic field similar to a bar magnet.
It increases electrical resistance.
It decreases voltage.
What symbol is used to denote magnetic flux in formulae?
T
Φ
W
B
What is the unit for flux density?
Weber
Tesla
Ampere
Volt
What does a higher concentration of magnetic lines indicate?
A weaker magnetic field
A stronger magnetic field
No change in magnetic field strength
A decrease in magnetic flux
What is the effect of more compact magnetic lines?
Weaker magnetic field
Stronger magnetic field
No effect on magnetic field
Decreased magnetic flux
