Door Bell

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1. What is the purpose of the resistor in a doorbell circuit?

• a) To make the doorbell ring loudly
• b) To protect the battery
• c) To regulate the current and protect the buzzer
• d) To change the buzzer's tone

2. Which component is used to complete the electrical circuit in a doorbell when the button is pressed?

• a) Buzzer
• b) Resistor
• c) Battery
• d) Breadboard

3. How is the pushbutton switch connected to the breadboard in a doorbell circuit?

• a) By soldering it
• b) By inserting its leads into the breadboard
• c) By wrapping it with a wire
• d) By using tape

4. How do you disconnect the battery from the doorbell circuit to stop the buzzer?

• a) By removing the battery entirely
• b) By pressing the pushbutton again
• c) By disconnecting the resistor
• d) By blowing on the buzzer

5. Which component ensures that the buzzer receives the correct voltage and current to operate safely?

• a) Pushbutton switch
• b) Battery
• c) Resistor
• d) Breadboard

6. What is the function of the buzzer in a doorbell circuit?

• a) To regulate the current
• b) To protect the battery
• c) To create a ringing sound when the button is pressed
• d) To change the color of the breadboard