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Q 1/10
Score 0
In a simple Arduino circuit designed to blink an LED, which component is primarily used to limit the amount of current and protect the LED from burning out?
30
A push button
A capacitor
A resistor
A transistor
Q 2/10
Score 0
Which Arduino function is used to turn an LED on or off by sending a HIGH or LOW signal to a specific pin?
30
pinMode()
digitalWrite()
delay()
analogRead()
10 questions
Q.
In a simple Arduino circuit designed to blink an LED, which component is primarily used to limit the amount of current and protect the LED from burning out?
1
30 sec
Q.
Which Arduino function is used to turn an LED on or off by sending a HIGH or LOW signal to a specific pin?
2
30 sec
Q.
When connecting an LED to an Arduino digital pin, which leg of the LED must be connected to the ground (GND) pin to complete the circuit?
3
30 sec
Q.
4
30 sec
Q.
5
30 sec
Q.
When building a simple circuit with an Arduino, what usually happens if you connect the output pin directly to the LED without using a resistor?
6
30 sec
Q.
Which basic electrical law explains why we use a resistor to control the current flowing through an LED connected to an Arduino output pin?
7
30 sec
Q.
Which section of an Arduino sketch is responsible for repeating the output commands, such as turning an LED on and off indefinitely?
8
30 sec
Q.
If you connect an LED and a resistor to pin 13, which line of code is required to establish that pin 13 is the one providing power for that output?
9
30 sec
Q.
When connecting an LED to an Arduino, why is the shorter leg (the cathode) typically connected to the pin labeled 'GND'?
