electricity - diodes and LEDS Flashcards
1
Q
what is the current like in a diode
A
it only flows in 1 direction
2
Q
true or false
no current can flow in reverse direction
A
true
3
Q
what are diodes useful for
A
controlling the flow of current in circuits
4
Q
how is the symbol for a diode and led different
A
and led is the same but it has two little arrows pointing up from it
5
Q
what does an led do
A
gives off light when a current passes through it
6
Q
what is the efficiency of an led
A
they are extremely efficient
