Magnetism/Electricity

What is the unit for current?

• Watts

• Amps

• Teslas

• Meters

What is the equation for magnetic field strength?

• B = μ x n x I

• B = μ x n /I

• B = μ x G x F

• B = μ x m x a

How can you increase the magnetic field strength?

• Decrease the number of coils

• Decrease the distance of the solenoid

• Decrease the current

• All of the Above

What can a magnetic field induce?

• A gravitational field

• Nothing

• An electric current

• All of the Above

What was not needed to make an electromagnet?

• Coil

• Battery

• Magnet

• Nail

What happens to the magnetic field strength when you increase the current?

• You increase the magnetic field stength

• You decrease the magnetic field strength

• Nothing changes about the magnetic field strength

• There is not enough information to know.

What is the flow of electrons?

• Coils

• Current

• Magnetic Field Strength

• Distance

What is an example of an Electric Current inducing a Magnetic Field?

• The shake flashlight

• Moving a magnet through coils

• Making an electromagnet

• Light Switch in our classroom

What are the lines that leave the north pole of a magnet and go to the south pole called?

• Magnetic force lines
• Magnetic flux lines
• Magnetic attraction lines
• Magnetic field lines

What is the magnetic field strength when there are 100,000 coils and 0 amps?

• 1,000
• 0
• 10,000
• 100,000