Led lights and diodes

LED stands for

• Light Emitting Donador

• Light Emitting Diode

• Light Emulator Diode

• Low Emitting Diode

In order to produce light the anode must be connected to:

• the negative pole of the battery

• the positive pole of the battery

• It does not matter

When connecting a LED to the Arduino the cathode must be connected to:

• Any digital pin

• 5V

• GND

• Any terminal available

The anode is the (2 correct answers):

• Longer lead

• Shorter lead

• Positive terminal

• Negative terminal

The cathode has (more than one answer is correct)

• the longer lead

• the shorter lead

• a flat side

• the positive charge

A resistor is connected with the LED to

• protect the LED

• give power to the LED

The resistor connected to a LED has typical resistance values between:

• 10K - 20K

• 200R - 1K

• 2K - 8K

• 10R -100R

Which diodes are directly polarized

• D1

• D2

• Both

• None

Which diodes are directly polarized

• D1

• D2

• Both

• None

Which diodes are directly polarized

• D1

• D2

• Both

• None