Tensai Science Quiz

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Review Courses

Magnetism and Electromagnetism

What is the SI unit of magnetic field strength?

Tesla (T)
Newton (N)
Volt (V)
Ampere (A)

What happens when a current-carrying conductor is placed in a magnetic field?

It experiences a force
It heats up
It glows
Nothing happens

Who discovered electromagnetic induction?

Michael Faraday
James Clerk Maxwell
Albert Einstein
Isaac Newton

What is the shape of the magnetic field around a straight conductor carrying current?

Concentric circles
Straight lines
Ellipses
Triangles

Which device works on the principle of electromagnetic induction?

Generator
Battery
Resistor
Capacitor

What happens when a magnet is moved through a coil of wire?

An electric current is induced
A magnetic monopole is formed
The wire breaks
Heat is released

What is the function of a transformer?

To change voltage levels
To store charge
To increase resistance
To convert AC to DC

What happens to the force between two parallel current-carrying conductors with currents in the same direction?

They attract each other
They repel each other
They remain unaffected
They lose current

Which rule is used to determine the direction of current in electromagnetic induction?

Lenz's Law
Newton's Third Law
Coulomb's Law
Boyle's Law

What is the function of a commutator in a DC motor?

To reverse current direction
To increase resistance
To store energy
To reduce magnetic flux

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Edmonton

Canada

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