Circuit Symbols Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q
A

diode

only allows current to pass through in one direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
A

variable resistor

a resistor whose resistance can be varied, increasing the resistance decreases the current

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q
A

AC supply

alternating current, current flows one way, then the other

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
A

push switch (open)

no current flows until push switch is pushed

has never been spotted in a paper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q
A

milliammeter

(a sensitive ammeter, which measures in milliamps)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q
A

relay​

an electromagnetic switch

has never been spotted in a paper​

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q
A

microphone

converts sound energy to electrical energy

has never been spotted in a paper​

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q
A

thermistor

resistance changes with temperature, cold = high resistance, can be used as a temperature sensor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q
A

cell

converts chemical energy to electrical energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q
A

resistor

reduces the current flowing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q
A

light emitting diode (LED)

a diode that emits light, only allows current to pass through in one direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q
A

push switch (closed)

switch is pushed, current can flow

has never been spotted in a paper​

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q
A

lamp

converts electrical energy to light (and heat too)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
A

electric bell

ding ding

has never been spotted in a paper​

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q
A

fuse

safety device, thin wire melts when current is too high, breaks circuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q
A

motor

converts electrical energy to kinetic energy

17
Q
A

closed switch

current can flow, circuit is complete

18
Q
A

battery

two or more cells connected

19
Q
A

transformer

can increase or decrease AC voltage/current

often labelled when seen in a paper

20
Q
A

heater

heats things, converts electrical energy to thermal energy

has never been spotted in a paper​

21
Q
A

light dependent resistor (LDR)

resistance changes with light intensity, dark = high resistance, can be used as a light sensor

22
Q
A

open switch​

current can’t flow, circuit is broken

23
Q
A

generator

converts kinetic energy to electrical energy

has never been spotted in a paper

24
Q
A

ammeter

measures current, placed in series

25
Q
A

DC supply

direct current, current flows from positive to negative

26
Q
A

voltmeter​

measures voltage, placed in parallel across the component to be measured

27
Q
A

Earth

safety feature, allows charge to flow away safely

has never been spotted in a paper