IOTA LGC Chapter 5 Diodes

Function of diode

• Allow current to flow in any order

• Allow current to flow in one direction only

• Limit Current in a circuit

• Store Charge

Diodes have ... polarities (poles).

• 2

• 3

• 4

• 6

The Positive (+) lead of the diode.

• anode

• cathode

• plus

• minus

The Negative (-) lead of the diode.

• anode

• cathode

• plus

• minus

LED stands for ... Emitting Diode

• Laser

• Last

• Light

• Lock

... are used with LED to reduce the amount of current in the circuit.

• Batteries

• Capacitors

• Resistors

• Switches

Current flows from .... voltage to .... voltage.

• High to Low

• Low to High

Which of the following is a diode?

• 
• 
• 
• 

Which of the following diagram shows an LED?

• 
• 
• 
• 

The current is moving from left to right.
Will the Current be able to move?
// clue the red line indicates the Cathode (-ve)

• Yes

• No