Arduino LED Circuit Quiz

What is the main focus of the second video in the Arduino course?

• Building a circuit with multiple LEDs and coding them

• Understanding the Arduino board layout

• Learning about resistors

• Creating a simple LED circuit

In a series connection, how are the components arranged?

• In a circular loop

• Randomly connected

• End to end forming a single path

• In parallel paths

Why is there no need for a resistor in a series LED circuit?

• The LEDs are too dim to require one

• The LEDs themselves provide resistance

• The circuit is powered by a low voltage

• Resistors are only needed in parallel circuits

What happens to the brightness of LEDs in a series circuit compared to a parallel circuit?

• They flicker continuously

• They glow with very little intensity

• They do not glow at all

• They glow more intensely

In a parallel circuit, how are the components connected?

• In a loop

• In a zigzag pattern

• In a single path

• Between two electrically common points

What is the effect of adding more LEDs in a parallel circuit?

• The circuit stops working

• The brightness increases

• The brightness remains the same

• The brightness decreases

Which platform is recommended for coding Arduino circuits in the video?

• Scratch

• Both Tinkercad and mBlock

• Tinkercad

• mBlock

What is the purpose of setting digital pins to 'high' in the Arduino code?

• To reset the circuit

• To increase the voltage

• To turn on the LEDs

• To turn off the LEDs

What must be done before uploading code to the Arduino board in mBlock?

• Connect the board to the computer

• Install additional software

• Calibrate the LEDs

• Change the circuit layout

What happens when the Arduino board starts up with the uploaded code?

• The board resets

• The code runs forever

• The code runs once

• The LEDs turn off