A unit of electric current equal to a flow of one coulomb per second
What is ampere
100
The SI unit for voltage
What is volt
100
A region around a magnetic material or a moving electric charge within which the force of magnetism acts.
What is a magnetic field
100
An electric current flowing in one direction only.
What is a direct current
100
A dynamo or similar machine for converting mechanical energy into electricity.
What is a generator
200
An electromotive force or potential difference expressed in volts.
What is voltage
200
The SI unit for electrical current
What is ampere
200
A region around a charged particle or object within which a force would be exerted on other charged particles or objects.
What is an electric field
200
An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies
What is alternating current
200
A machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for some other device with moving parts
What is a motor
300
Rate, per unit time, at which electrical energy is transferred by an electric circuit.
What is power
300
The SI unit for resistance
What is Ohm
300
A region within a magnetic material in which the magnetization is in a uniform direction.
What is magnetic domain
300
A closed circuit in which the current divides into two or more paths before recombining to complete the circuit
What is parallel circuit
300
A substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage
What is a conductor
400
The difference of electrical potential between two points.
What is potential difference
400
The SI unit for power
What is watt
400
Each of the two points or regions of an artificial or natural magnet to and from which the lines of magnetic force are directed.
What is a magnetic pole
400
A closed circuit in which the current follows one path
What is a series circuit
400
A material whose internal electric charges do not flow freely, and therefore make it nearly impossible to conduct an electric current under the influence of an electric field
What is an insulator
500
A device used to transfer electrical energy from one circuit to another.
What is a transformer
500
A system of physical units based on the meter, kilogram, second, ampere, kelvin, candela, and mole, together with a set of prefixes to indicate multiplication or division by a power of ten
What is a SI unit
500
a soft metal core made into a magnet by the passage of electric current through a coil surrounding it
What is an electromagnet
500
A different way of indicating 'total' resistance, which we calculate differently for series and parallel circuits
What is equivalent resistance
500
A passive two-terminal electrical component that implements electrical resistance as a circuit element