A train that uses an electromagnet to float above the track
What is a maglev?
100
The name of the region where a magnetic mineral was first found
What is Magnesia?
100
Uses two solenoids to make both sound and light
What is a doorbell?
100
Discovered that an electric current produces a magnetic field
Who is Hans Christian Oersted?
100
This type decrease voltage
What is step down transformer
200
Interaction between electricity and magnetism
What is electromagnetism?
200
A magnet with very strong magnetic properties
What is ferromagnet?
200
Converts mechanical energy into electrical energy
What is an electric generator?
200
Found that changing a magnetic field could produce an electric current
Who is Farraday?
200
This type increases voltage
What is step-up transformer?
300
The region around a magnet where magnetic forces act
What is magnetic field?
300
A type of magnet that loses magnetization easily
What is temporary magnet?
300
A solenoid wrapped around an iron core.
What is electromagnet?
300
Found a mineral called magnetite about 2,000 years ago
Who are the Greeks?
300
Transformers work using only this type of current
What is alternating?
400
Device that changes the voltage of an alternating electric current
What is transformer?
400
The geographic pole that the Earth's magnetic South Pole is close to
What is North Pole?
400
Device that converts electrical energy into mechanical energy
What is electric motor?
400
He made the discovery in America, of electricity from magnetism at the same time as his British counterpart, but he was not able to publish his findings first.
Who is Joseph Henry?
400
The primary coil of a step up transformer has 10 turns of wire, the secondary has 30. Determine voltage in the primary , if the secondary has 60volts.
What is 20 volts?
500
Occurs when an electric current is made by a changing magnetic field
What is electromagnetic induction?
500
The magnetic pole that a compass needle points to
What is the south pole?
500
Used to measure current
What is galvanometer?
500
In the 1600's, he first suggested that magnets point to the north, because Earth is one giant magnet.
Who is William Gilbert?
500
A transformer has 6 turns in the primary coil and 3 in the secondary. Determine voltage of the secondary coil, if the voltage in the primary is 50 volts.