Review_Revisions:Arduino Uno

What is the primary function of a resistor in an Arduino circuit?

• Store electrical energy

• Limit current flow

• Emit light

• Act as a switch

Which component stores and releases electrical energy without a fixed polarity?

• Light-dependent resistor (LDR)

• Non-polarized capacitor

• Transistor

• Push button

What type of component is an LED (Light Emitting Diode)?

• A capacitor

• A semiconductor that emits light

• A mechanical switch

• A type of resistor

Which component changes resistance depending on light intensity?

• Push button

• Buzzer

• Light-dependent resistor (LDR)

• Transistor

What is the main function of a transistor?

• Convert electrical energy to sound

• Store electrical charge

• Amplify or switch electronic signals

• Control voltage fluctuations

What does an integrated circuit (IC) do?

• Converts electrical energy into light

• Controls current flow in a circuit

• Contains multiple electronic components like resistors and transistors

• Acts as a momentary switch

Which component acts as the brain of the Arduino board?

• Breadboard

• LED

• Microcontroller

• Capacitor

What does the USB port on an Arduino board do?

• Connects external power sources

• Transfers data between the computer and the Arduino

• Provides a ground connection

• Controls voltage fluctuations

Which type of pins on an Arduino board can read analog values?

• Digital pins

• PWM pins

• Analog pins

• Power supply pins

What is the primary use of a breadboard?

• To amplify electrical signals

• To permanently attach components in a circuit

• To prototype and test electronic circuits without soldering

• To store electrical energy