Light, electric circuits and equipment!!!!!

Question 1

ammeter
An ammeter is a measuring instrument used to measure
electric current in a circuit.

Answer 1

Strommesser,
Ampèremeter

Question 2

amplifier
→ to amplify = to boost
An amplifier is an electronic device for increasing the
amplitude of electrical signals

Answer 2

Verstärker
→ verstärken

Question 3

array
→ antenna array
→ photovoltaic array
Although a PV array produces power when exposed to
sunlight, a number of other components are required to
properly conduct, control, convert, distribute, and store the
energy produced by the array

Answer 3

Feld, Aufstellung,
Bereich
→ Antennengruppe
→ PV-Reih

Question 4

cap
A light bulb is mounted on a cap

Answer 4

Lampensockel

Question 5

capacitor
A capacitor is used to store energy

Answer 5

Kondensator

Question 6

charge
→ to (re)charge
→ to discharge
Current is the rate of flow of electric charge in a circuit.
Batteries run down with usage and need to be recharged

Answer 6

Ladung
(→ wieder auf-)laden
→ entladen

Question 7

component
A circuit board consists of many electronic components,
such as relays and resistors

Answer 7

Komponente, Bauteil

Question 8

conductor
→ to conduct
A conductor transmits electricity, heat or light.

Answer 8

Leiter
→ leiten

Question 9

cord
→ cordless
Most electrical appliances have a cord to connect to a
socket.

Answer 9

Kabel
→ kabellos

Question 10

electric circuit
An electric circuit is a system of electrical conductors and
components forming a path.

Answer 10

elektrische Schaltung,
Stromkreis

Question 11

to emit (light)
→ light-emitting diode
→ emitter
An LED emits light very efficiently. A light-emitting diode
(LED) lets current pass in one direction only.
The emitter and collector are parts of a transistor.

Answer 11

absondern, ausstrahlen
→ Leuchtdiode,
lichtemittierende Diode
→ Emitter

Question 12

filament
In light bulbs, an electric current passes through a thin
filament wire, heating it until it produces light.

Answer 12

Glühdraht

Question 13

fluorescent lamp
→ compact fluorescent
lamp (CFL)
A fluorescent lamp is a gas-discharge lamp which uses
electricity to excite mercury vapour.
→ In colloquial English, a compact fluorescent lamp is an
energy-saving lamp.

Answer 13

Leuchtstoffröhre
→ Kompaktleuchtstofflampe,
Energiesparlampe

Question 14

fuse
→ the fuse blows
→ fuse box
Fuses are used in electrical systems to protect against
excessive current. A fuse blows if excess current flows.

Answer 14

elektrische Sicherung
→ durchbrennen
→ Sicherungskasten

Question 15

(power / electrical) grid
→ off-grid
An electrical grid is an interconnected network for
delivering electricity from suppliers to consumers

Answer 15

Stromnetz
→ netzunabhängig

Question 16

illumination = lighting
→ to illuminate = to
light
LEDs are used for power-efficient street illumination.

Answer 16

Beleuchtung
→ beleuchten

Question 17

insulator
→ to insulate
→ insulation
An insulator is a material that resists the flow of electric
currents, such as porcelain.

Answer 17

Isolator, Nichtleiter
→ (ab)isolieren
→ Isolierung

Question 18

light bulb
In 1872, Lodygin, an electrical engineer, was one of the
inventors of the incandescent light bulb.

Answer 18

Glühbirne

Question 19

plug
All electrical devices have plugs to connect them to the
power grid.

Answer 19

Stecker

Question 20

pylon
Electricity pylons are used for carrying power lines high
above the ground.

Answer 20

Hochspannungsmast

Question 21

rectifier
→ to rectify
A rectifier is an electrical device that converts AC to DC

Answer 21

Gleichrichter
→ demoldulieren,
gleichrichten

Question 22

relay
A relay is an electrical device that is activated by a current
in one circuit to open or close another circuit.

Answer 22

Schaltrelais

Question 23

resistor
A resistor is a two-terminal electronic component that
produces a voltage across its terminals.

Answer 23

elektrischer Widerstand

Question 24

socket
British sockets have 3 slots

Answer 24

Steckdose

Question 24

to step up/down
In substations, the voltage is stepped down to lower voltage
levels

Answer 24

(hier:) transformieren

Question 25

switch
→ to flick a switch
A switch is an electrical component that can make or break
an electrical circuit. One flicks it to interrupt the current.

Answer 25

Schalter
→ einen Schalter
umlegen, betätigen

Question 26

thermistor
A thermistor is a type of electrical resistor whose resistance
varies significantly with temperature

Answer 26

Heißleiter

Question 27

visible
→ visibility
 invisible
The visible spectrum is the portion of the electromagnetic
spectrum that is visible to the human eye

Answer 27

sichtbar
→ Sicht, Sichtbarkeit
 unsichtbar

Question 28

voltage
Voltage is commonly used for denoting electrical potential
difference

Answer 28

Spannung

Question 29

wattage
The amount of current required by an electrical appliance
depends on the wattage.

Answer 29

Wattzahl, Wattleistung

Question 30

wavelength
→ wavelength range
Electromagnetic radiation in the visible range of
wavelengths is called visible light.

Answer 30

Wellenlänge
→ Wellenlängenbereich

Question 31

wire
→ wiring
→ live wire
→ neutral wire
→ earth wire
The international standard colour for live wires is brown,
neutral is blue and protective earth (ground) is green and
yellow.
A live wire is one through which current flows into a device.
Live also means a circuit is energized, i.e. that current is
flowing around the circuit.

Answer 31

Draht, Kabel
Verkabelung,
Verdrahtung
→ stromführender Draht
→ Null-/Mittelleiter
→ Erdungsleiter