# Driving force from buzzer for jacket of length L

• ChiralSuperfields
In summary, the conversation discusses the concept of resonance and how it relates to a buzzer vibrating during a cycle to provide a driving force. It is mentioned that there may be a phase lag between the source of vibration and the swinging cloth due to losses, but ultimately the impetus from the source is reinforcing.
ChiralSuperfields
Homework Statement
Relevant Equations
For this problem,

How do we tell when the buzzer vibrates during the cycle to provide the driving force?

Many thanks!

Callumnc1 said:
How do we tell when the buzzer vibrates during the cycle to provide the driving force?
It's an example of resonance. https://en.wikipedia.org/wiki/Resonance.
Because there are losses in the swinging cloth, it will always be a bit behind the source of vibration (phase lag). As a result, the impetus from the source is reinforcing.

ChiralSuperfields
haruspex said:
It's an example of resonance. https://en.wikipedia.org/wiki/Resonance.
Because there are losses in the swinging cloth, it will always be a bit behind the source of vibration (phase lag). As a result, the impetus from the source is reinforcing.

## 1. What is the driving force from the buzzer for a jacket of length L?

The driving force from the buzzer for a jacket of length L is the force that is generated by the buzzer to move the jacket in a specific direction. It is usually measured in Newtons (N).

## 2. How does the driving force from the buzzer work?

The driving force from the buzzer works by converting electrical energy into mechanical energy. The buzzer contains a coil of wire that creates a magnetic field when an electric current is passed through it. This magnetic field then interacts with a permanent magnet, causing vibrations that produce sound waves and also create a driving force for the jacket.

## 3. Can the driving force from the buzzer be adjusted?

Yes, the driving force from the buzzer can be adjusted by changing the input voltage or by adjusting the position of the permanent magnet. Increasing the input voltage will increase the strength of the magnetic field and therefore the driving force, while adjusting the position of the permanent magnet can change the direction of the force.

## 4. Is the driving force from the buzzer constant?

No, the driving force from the buzzer is not constant. It can vary depending on factors such as the input voltage, the position of the permanent magnet, and any external forces acting on the jacket. However, it can be controlled and adjusted to achieve a desired level of force.

## 5. What are the practical applications of the driving force from the buzzer for a jacket of length L?

The driving force from the buzzer for a jacket of length L can be used in various applications such as vibrating massage jackets, self-heating jackets, and jackets with built-in speakers for audio output. It can also be used in industrial settings for material handling and sorting, as well as in robotics for creating movement and sound effects.

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