Blinking of LED by push button using Arduino

Q1. What is the primary purpose of a pull-up resistor in a push-button circuit?

a) To decrease resistance

b) To increase current flow

c) To amplify signals

d) To ensure a stable voltage level

Q2. Which semiconductor material is commonly used in the construction of LEDs?

a) Copper

b) Aluminum

c) Gallium arsenide

d) Silicon

a) To transmit data via Bluetooth

b) To generate sound

c) To send wireless signals

d) To control the brightness of an LED

Q4. What is the primary function of a push-button in a circuit?

a) To control aspects of a machine or process

b) To generate electricity

c) To create light

d) To transmit signals wirelessly

Q5. What is the primary purpose of the Arduino Integrated Development Environment(IDE)?

a) To simulate electronic circuits

b) To design circuit schematics

c) To test hardware components

d) To write, compile, and upload code to the microcontroller