Electricity

Question 1

Subatomic particle that carries negative electric charge and generates electromagnetic fields

Answer 1

Electron

Question 2

A two-terminalelectronic componentthat conductscurrentprimarily in one direction (asymmetricconductance); it has low (ideally zero)resistancein one direction, and high (ideally infinite)resistancein the other.

Answer 2

Diode

Question 3

An extremely long fish that hunts for prey using small electric shocks

Answer 3

Electric eel (Electrophorus electricus)

Question 4

The ability of a system to store an electric charge; the ratio of the change in an electric charge in a system to the corresponding change in its electric potential

Answer 4

Capacitance

Question 5

SI Unit of Electric Current

Answer 5

Ampere

Question 6

What do DC and AC stand for?

Answer 6

Direct current and alternating current

Question 7

SI unit of conductance

Answer 7

Siemens

It used to be called the Mho, which is Ohm written backwards.

Question 8

The production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.

Answer 8

(Electromagnetic) induction

Question 9

One of the earliest researchers into electricity, who believed that friction rendered amber magnetic

Answer 9

Thales (of Miletus)

Question 10

SI unit of resistance

Answer 10

Ohm

Question 11

SI Unit of Electric Potential

Answer 11

Volt

Question 12

British inventor of the lightbulb and pioneer in photography, inventing bromide paper.

Answer 12

Joseph Swan

Question 13

A semiconductor device with at least three terminals used toamplifyorswitchelectronicsignals andelectrical power; a voltageorcurrentapplied to one pair of terminals controls the current through another pair of terminals.

(Invented in 1947 by American physicistsJohn BardeenandWalter Brattainwhile working underWilliam ShockleyatBell Labs. They shared the 1956Nobel Prize in Physicsfor their achievement.)

Answer 13

Transistor

Question 14

William Gilbert coined the New Latin word electricus from elektron, the Greek word for what?

Answer 14

Amber

Question 15

19th century scientist who contributed to the concept of electromagnetic fields, notably the principles underlying electromagnetic induction, diamagnetism and electrolysis.

Answer 15

Michael Faraday

Question 16

An atom or molecule that has a net electrical charge

Answer 16

Ion

Question 17

SI unit of electrical capacitance

Answer 17

Farad

Question 18

Inventor of the steam turbine, which is the basis behind nuclear, geothermal, and fossil fuel-driven energy

Answer 18

Sir Charles Parsons

Question 19

Engineer best known for his contributions to the design of the modern alternating current (AC) electricity supply system; his name is also the SI unit of magnetic flux density

Answer 19

Nikola Tesla

Question 20

the effect that causes the emission of electrons or other free carriers when light hits a material, proven by Albert Einstein in 1921

Answer 20

The photoelectric effect

Question 21

Scottish mathematical physicist who formulated the classical theory of electromagnetic radiation, bringing together for the first time electricity, magnetism, and light as different manifestations of the same phenomenon in his set of coupled differential equations

Answer 21

James Clerk Maxwell

Question 22

Danish scientist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism

Answer 22

Hans Christian Ørsted

Question 23

SI Unit of Power

Answer 23

Watt

Question 24

Inventor of the first electrical battery that could continuously provide an electric current to a circuit, copper and zinc discs separated by cardboard or felt spacers soaked in salt water (the electrolyte)

Answer 24

Alessandro Volta

the battery was called a voltaic pile

Question 25

English scientist who was the first to systematically experiment with electrical conduction after his 1729 discovery that his “thread-wire” could carry charge from one object to another

Answer 25

Stephen Gray

Question 26

Discovered the photoelectric effect, and has an SI unit named after him.

Answer 26

Heinrich Hertz

Question 27

Substances that produce an electrically conducting solution when dissolved in a polar solvent, such as water

Answer 27

Electrolyte

Question 28

French physicist and inventor of the solenoid (a term coined by him) and the electrical telegraph

Answer 28

André-Marie Ampère

Question 29

German physicist whose current law and voltage law are used to solve series and parallel circuits

Answer 29

Gustav Kirchhoff

Question 30

German physicist who found that there is a direct proportionality between the potential difference (voltage) applied across a conductor and the resultant electric current

Answer 30

Georg Ohm

This relationship is known as Ohm’s law.

Question 31

SI Unit of energy

Answer 31

Joule

Question 32

Device that restarts a stopped heart via a massive electric shock; commonly abbreviated AED

Answer 32

Automated External Defibrilator

Question 33

Discoverer of bioelectromagnetics, demonstrating that electricity was the medium by which neurons passed signals to the muscles

Answer 33

Luigi Galvani

Question 34

A type of electromagnet, the purpose of which is to generate a controlled magnetic field through a coil wound into a tightly packed helix; from the Greek for “pipe-shaped”

Answer 34

solenoid

Question 35

American founding father who invented, among other things, the lightning rod, and an electric stove, and discovered the conservation of charge

Answer 35

Benjamin Franklin

Question 36

SI unit of electric charge

Answer 36

Coulomb