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In an electric bell, what causes the circuit to break?
- a)The contact screw moving away
- b)The iron strip being pulled by the electromagnet
- c)The hammer striking the gong
- d)The coil overheating
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In an electric bell, what causes the circuit to break?a)The contact sc...
In an electric bell, the circuit breaks when the electromagnet pulls the iron strip away from the contact screw. This stops the current flow, causing the coil to lose its magnetic properties until the iron strip returns to its original position.
Community Answer
In an electric bell, what causes the circuit to break?a)The contact sc...
Understanding the Electric Bell Mechanism
The electric bell operates on a simple yet effective electromagnetic mechanism. The key to its function lies in how the circuit is broken, which primarily involves the movement of the iron strip.
How the Electric Bell Works
- When the electric bell is powered on, current flows through the coil, creating a magnetic field.
- This magnetic field attracts the iron strip, which is connected to a hammer.
- As the iron strip moves towards the electromagnet, it strikes the gong, producing sound.
Breaking the Circuit
- The moment the iron strip is pulled by the electromagnet, it moves away from the contact screw.
- This movement disconnects the circuit, breaking the flow of electricity.
- As the current stops, the magnetic field collapses, allowing the iron strip to return to its original position.
- This cycle repeats as long as the button is pressed.
Conclusion
In summary, the correct answer is option 'B' because the iron strip's movement, driven by the electromagnet, is what directly causes the circuit to break. This interruption in the current flow is crucial for the operation of the electric bell, making it an elegant example of electromagnetic principles in action.
The electric bell operates on a simple yet effective electromagnetic mechanism. The key to its function lies in how the circuit is broken, which primarily involves the movement of the iron strip.
How the Electric Bell Works
- When the electric bell is powered on, current flows through the coil, creating a magnetic field.
- This magnetic field attracts the iron strip, which is connected to a hammer.
- As the iron strip moves towards the electromagnet, it strikes the gong, producing sound.
Breaking the Circuit
- The moment the iron strip is pulled by the electromagnet, it moves away from the contact screw.
- This movement disconnects the circuit, breaking the flow of electricity.
- As the current stops, the magnetic field collapses, allowing the iron strip to return to its original position.
- This cycle repeats as long as the button is pressed.
Conclusion
In summary, the correct answer is option 'B' because the iron strip's movement, driven by the electromagnet, is what directly causes the circuit to break. This interruption in the current flow is crucial for the operation of the electric bell, making it an elegant example of electromagnetic principles in action.
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In an electric bell, what causes the circuit to break?a)The contact screw moving awayb)The iron strip being pulled by the electromagnetc)The hammer striking the gongd)The coil overheatingCorrect answer is option 'B'. Can you explain this answer?
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