Physics Electromagnetism

What type of process is shown?

• Electromagnet

• Electric motor

• Electric generator

• Electromagnetic induction

Tags

NGSS.HS-PS2-5

All of the following would increase the current induced by the magnet EXCEPT

• increasing the speed of the motion

• increasing the number of coils of wire

• increasing the resistance in the coils

• increasing the strength of the magnet

Tags

NGSS.HS-PS2-5

The scenario shown induces a voltage of magnitude V. If the magnet has twice the magnetic field but its motion stopped, how would the induced voltage change?

• Voltage would be twice as large in the same direction.

• Voltage would be half as large in the same direction.

• Voltage would be twice as large in the opposite direction.

• No voltage would be induced in the coil.

Tags

NGSS.HS-PS2-5

___ Law says that the Induced current is proportional to the change of magnetic flux 

• Lenz'
• Faraday's
• Ampere's

Tags

NGSS.HS-PS2-5

___ Law says that a current produced by an induced emf moves in a direction so that its magnetic field opposes the original change in flux

• Lenz'
• Faraday's
• Ampere's

Tags

NGSS.HS-PS2-5

Which action will increase the deflection of the galvanometer pointer?

• The magnetic pole is reversed

• The number of turns of coils is increased

• The coil is made from insulated wire

• The magnet is slowly pushed into the coil

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

How could the experimenter increase the amount of electricity being induced by this experiment?

• Increase the number of coils
• Decrease the number of coils
• Flip the magnet around
• Nothing, the amount of electricity cannot be increased

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What happen to the Galvanometer?

• Deflected to the right

• Deflected to the left

• Nothing happen

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the Pole at X

• North

• South

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What happen to the Galvanometer?

• Deflected to the right

• Deflected to the left

• Nothing happen

Tags

NGSS.HS-PS2-5