This property must be present to motivate an electric current.
What is electric potential (voltage)?
100
This element is the most popular for creating permanent magnets.
What is iron?
100
Back emf, pushing a magnet through a coil, and moving a wire in a static magnetic field are three ways to do this.
What is magnetic induction?
100
This is the tool invented to measure very small currents and voltages.
What is a galvanometer?
200
This is the current through a 5-ohm resistor connected to a 10-V battery.
What is 2 Amps?
200
Moving electric charges is the fundamental source of this force (they must be moving).
What is magnetism?
200
This is the name of the circuit component used to translate between different voltages.
What is a transformer?
200
This is the term for the points on the wave at a maximum displacement from the center.
What is antinode?
300
This is a method of charging an object that occurs with contact.
What is charging by friction?
300
This component opposes the flow of electric current (usually built with a thinner wire for additional "pressure".
What is a resistor?
300
Breaking a permanent magnet in half will do this to the strength of the magnet.
What is nothing?
300
This law states that a changing magnetic field can induce an electric current.
What is Faraday's Law.
300
This circuit component allows current to flow only in one direction.
What is a diode?
400
If you add a third lightbulb (of equal resistance to the first two) in parallel with a battery and two parallel lighbulbs, this happens to the current.
What is increases (by 50%).
400
This circuit component stores energy onto two plates that collect charge.
What is a capacitor?
400
This is a magnet whose field is produced by an electric currents. It is usually in the form of a wire coil with a piece of iron inside the coil.
What is an electromagnet?
400
This law states that a changing electric field can induce a magnetic field.
What is Maxwell's Law?
400
This is Ohm's Law.
What is Volts = Amps * Ohms (Electric Potential = Current times resistance)?
500
This is Coulomb's Law.
What is F=kq(sub)1q(sub)2 / d(sup)2?
500
This is Watt's Law.
What is Watts = Volts * Amps?
500
This is a cluster of aligned atoms within a magnetic field.
What is a magnetic domain?
500
This is the number of volts on the secondary coil of a transformer if the primary coil has 10 turns and 5 volts and the secondary has 16 turns.
What is 8 Volts?
500
This is the power through a 5-Ohm resistor connected in series with a 2-Ohm resistor and a 7 Volt battery.