Electromagnetic Induction

What would be the magnetic force of a pole located in the geographical south of the Earth?

• North

• South

• North and South

• The Earth has no magnetic force.

Which among the choices is NOT a factor that affects the magnitude of an electromotive force?

• Area of the coil

• Orientation of the poles

• Number of turns in the coil

• Magnetic strength of the core

It is the measurement of the total magnetic field which passes through a given area.

• Magnetic Flux

• Electromagnetic Flux

• Electric Flux

• Electromotive Flux

When the number of coils in a magnet is increased, what happens to the magnitude of the current?

• Stays the same

• Decreases

• Increases

• No effect

The magnitude of the _______ of the charged particle depends on the strength of the magnetic field and the velocity of the particle.

• Direction

• Speed

• Acceleration

• Force

When a charged particle moves through a magnetic field, it experiences a force parallel to both its velocity and the direction of the magnetic field.

• True

• False

Electric interactions occur between the charged particles that are mediated by their magnetic field.

• True

• False

What will occur if two positively charged particle are placed near each other?

• Nothing

• Attraction

• Repulsion

• Depends on the magnet

A magnet is cut into two, what poles are produced with the two magnets?

• Three positive; one negative

• Two positive; two negative

• One positive; three negative

• Either four positive or negative

The direction of a magnetic field’s lines always head towards the South pole.

• True

• False