Circuit Symbols. Flashcards
1
Q
Cell
A
To push electrons around a complete circuit.
2
Q
Battery
A
Consists of two or more cells.
3
Q
Switch
A
Enables the current in a circuit to be switched on or off.
4
Q
Indicator
A
Designed to emit light as a signal when a current passes through it.
5
Q
Diode
A
Alows current to flow in one direction only.
6
Q
Light emitting-diode(LED)
A
Emits light when a current passes through it.
7
Q
Ammeter
A
Used to measure electric current.
8
Q
Fixed resistor
A
Limits the current in a circuit.
9
Q
Variable resistor
A
Allows the current to be varied.
10
Q
Fuse
A
Designed to melt and break the circuit if the current through it is greater than a certain amount.
11
Q
Heater
A
Designed to transfer the energy from an electric current to heat the surroundings.
12
Q
Voltmeter
A
Used to measure potential difference(voltage)
