Flashcards in Chapter 44: Electronics Deck (10)
Sign for a diode
When does a diode conduct?
-when the positive part is connected to the negative terminal and vice versa
-this is called forward bias (opposite is reverse bias)
When a diode allows electricity to flow through a circuit
When a diode does not allow electric yt to flow through it
Light emitting diode (LED) function
-Shows that current if flowing through a circuit
-needs a resistor as it only uses a v small a amount of electricity
What does LED stand for?
Light emitting diode
What is the sign for an LED?
Same as diode but with two arrows protruding from the top left hand corner
What does LDR stand for?
Light dependant resistor
Function of an LDR?
-resistance decreases if the LDR senses a lot of light shining on it
-resistance will increase of the LDR senses darkness