"Current" Events
Current always flows in which direction?
High to low Potential Energy
The area of a magnet where the magnetic field is the strongest
At the Poles
The Two Component parts of an Electromagnet
Solenoid and Ferromagnet
Up or Down
What are the two types of currents
Direct Current and Alternating Current
Current is measured in what unit?
Amperes
How does the Magnetic field around Earth serve as a protective layer?
Funnels charged particles from the sun to the poles and then around the Earth
What are 3 ways to increase the strength of your solenoid
Coils Closer together, More Coils, Higher current
The process where electricity is produced by a magnetic field
Electromagnetic Induction
What is the relationship between a motor and a generator
Generator = Mechanical energy into Electric energy
Motor= Electric energy into Mechanical energy
What is a true statement about both Magnetic and Electric Fields?
There is both a positive and negative side creating the field.
Where you can find the South Magnetic Pole
The Geographic North Pole
In terms of Positive and Negative Ends, which direction does a magnetic field line travel?
The two ways to induce an electric current
Moving a conductor through a magnetic field, Moving a magnetic field through a conductor
What is the function of a Galvanometer
Direction and strength of an electric current
The difference in Electric energy per charge
Voltage
Describe the change in Potential Energy as you take a magnet off of a refrigerator and then place it back on.
Move Away= Potential Energy Increase
Move Towards = Potential Energy Decrease
According to the right hand rule, if your current is flowing up, which direction is your magnetic field moving?
Counter Clockwise
Name the 5 parts to an electric motor
Commutator ring
Armature
Battery
Brushes
Based n the second right hand rule the direction of magnetic force will always be _________ In relation to the movement of your charges and ________ in relation to your magnetic field magnetic field.
Perpendicular, Opposite
Friction, Conduction, Induction, Polarization
Explain what happens if a credit card comes into contact with a strong magnet
The magnetic strip of the card because unreadable due to being demagnetized
if a Solenoid with 100 coils per meter running at 1 Amp creates a magnetic field of 20,000 Tesla,
How strong would the field be running at 3 amps?
60,000 Tesla
Calculate the secondary voltage of a transformer with
5 primary loops, 10 secondary loops, and 250 incoming volts
Is this a step up or step down?
500, Step up
What generates Earth's magnetic field
The movement of Iron within the convection currents of Earth's outer core.