Charging by Inductance: Replacing Electroscope with Capacitor

In summary, charging by inductance involves creating an electromagnetic field to transfer charge, while charging by conduction involves direct contact between two objects to transfer charge. In charging by inductance, a changing magnetic field is created by a source and is passed through a conductor, inducing a current in the conductor. This current charges the object connected to the conductor, such as a capacitor. The electroscope is replaced with a capacitor in charging by inductance because it can store the charge transferred through the process. The purpose of charging by inductance is to efficiently transfer charge without direct contact, making it useful in electronic devices and power systems. However, there are potential risks and drawbacks, such as complexity and cost of setup, the need for
  • #1
p75213
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http://www.youtube.com/watch?v=o0hXYfvnND0

What would happen if the ground was kept in place and the positively charged rod was constantly moved to and away from the electroscope? Would we not have ac current between the Earth and the electroscope?

Replace The electroscope with a capacitor where one side is continuously charged and discharged and the other side goes to earth. Could be an interesting little circuit.

Any comments?
 
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  • #2
Sure, electrons would move in the electroscope and then back out in a current.
 

FAQ: Charging by Inductance: Replacing Electroscope with Capacitor

1. What is the difference between charging by inductance and charging by conduction?

Charging by inductance involves creating an electromagnetic field to transfer charge, while charging by conduction involves direct contact between two objects to transfer charge.

2. How does charging by inductance work?

In charging by inductance, a changing magnetic field is created by a source (such as a battery) and is passed through a conductor, inducing a current in the conductor. This current then charges the object connected to the conductor, such as a capacitor.

3. Why is the electroscope replaced with a capacitor in charging by inductance?

The electroscope is used to detect the presence of an electric charge, but it cannot store the charge. A capacitor, on the other hand, can store the charge and can be used to measure the amount of charge transferred through the inductance process.

4. What is the purpose of charging by inductance?

Charging by inductance is used to efficiently transfer charge between objects without direct contact. It is often used in electronic devices and power systems.

5. Are there any potential risks or drawbacks to charging by inductance?

Inductance charging can be more complex and expensive to set up compared to other methods, and it requires a source of changing magnetic field. Additionally, if not done correctly, it can lead to electric shocks or damage to electronic devices.

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