Electromagnetics wireless transmission of Energy

In summary, the conversation discusses the concept of wireless energy transmission using two LC resonant tanks with the same resonant frequency. It is mentioned that the second coil will not receive all the power radiated from the first coil due to the spread of the transmitted field in space. The conversation also cautions against believing misinformation about wireless energy transmission. Lastly, the conversation touches on the idea of a resonant circuit concentrating the field on the receiving coil, but it is stated that this concept may not be fully understood.
  • #1
bocchesegiacomo
19
2
There is an LC resonant tank connected at a power source at the resonant frequency and far away from it there is Another LC circuit with the same resonant frequency connected to a multimeter.
Assuming that there is no resistance and that all components are ideal the second coil will receive all the power radiated from the first coil?
 
Physics news on Phys.org
  • #2
Is this homework?

If you describes one of those tanks as a radio transmitter and the other one as a radio receiver, what would you say the answer is?
 
  • #3
bocchesegiacomo said:
There is an LC resonant tank connected at a power source at the resonant frequency and far away from it there is Another LC circuit with the same resonant frequency connected to a multimeter.
Assuming that there is no resistance and that all components are ideal the second coil will receive all the power radiated from the first coil?
Of course not. The transmitted field is spread throughout space. Use the inverse-square law and ratio by the receive coil area.

Don't believe everything you read about wireless energy transmission (there is much more misinformation than good information about it), and don't believe what you see on YouTube.
 
  • #4
berkeman said:
Of course not. The transmitted field is spread throughout space. Use the inverse-square law and ratio by the receive coil area.

Don't believe everything you read about wireless energy transmission (there is much more misinformation than good information about it), and don't believe what you see on YouTube.
But if there is a resonant circuit the field concentrates on the receiving coil
 
  • #5
anorlunda said:
Is this homework?

If you describes one of those tanks as a radio transmitter and the other one as a radio receiver, what would you say the answer is?
I don't know
 
  • #6
bocchesegiacomo said:
But if there is a resonant circuit the field concentrates on the receiving coil

bocchesegiacomo said:
I don't know

It sounds like you don't understand the answer that @berkeman gave you. He's correct.
 
  • #7
The OP has his answer. Thread Closed.
 

1. What is electromagnetic wireless transmission of energy?

Electromagnetic wireless transmission of energy is a method of transferring electrical energy from one location to another without the use of wires or physical connections. This is achieved by converting electrical energy into electromagnetic waves, which can travel through the air or space and be converted back into electrical energy at the receiving end.

2. How does electromagnetic wireless transmission of energy work?

Electromagnetic wireless transmission of energy works by using an alternating current (AC) power source to generate an electromagnetic field. This field is then picked up by a receiver, which converts the energy back into electrical form. This process, known as electromagnetic induction, allows for the transfer of energy over long distances without the need for physical connections.

3. What are the advantages of electromagnetic wireless transmission of energy?

One of the main advantages of electromagnetic wireless transmission of energy is its ability to transfer energy over long distances without the need for wires or physical connections. This makes it a more convenient and efficient method for powering devices and equipment in remote locations. It also eliminates the need for frequent maintenance and repairs of power lines.

4. Are there any potential risks or drawbacks to electromagnetic wireless transmission of energy?

One potential risk of electromagnetic wireless transmission of energy is the potential for interference with other electronic devices or communication systems. Additionally, there may be concerns about the effects of electromagnetic radiation on human health. However, proper regulations and safety measures can minimize these risks.

5. What are some practical applications of electromagnetic wireless transmission of energy?

Electromagnetic wireless transmission of energy has a wide range of practical applications, including wireless charging of electronic devices, remote powering of sensors and devices in industrial environments, and powering of electric vehicles without the need for physical charging stations. It is also being explored as a potential solution for powering homes and communities in remote areas where traditional power infrastructure is not feasible.

Similar threads

A Voltage and current waves in a transmission line
    • Electromagnetism
Replies
4
Views
978
B Ion Trap and Time-Varying Potentials
    • Electromagnetism
Replies
1
Views
719
Electromagnetic radiation vs Capacitance and Inductance
    • Electromagnetism
Replies
16
Views
2K
EM waves, longitudinal EM propagation?
    • Electromagnetism
Replies
15
Views
1K
Electromagnetic Waves and different energy manifestations
    • Electromagnetism
Replies
4
Views
1K
Basics of RF coil development for MRI
    • Electrical Engineering
Replies
11
Views
2K
I Why is my magnetic levitation experiment not working?
    • Electromagnetism
Replies
22
Views
2K
Making a system with mobile electrical contacts
    • Electrical Engineering
Replies
13
Views
1K
Finding the resonant frequency of this "discriminator" demod circuit.
    • Electrical Engineering
Replies
2
Views
1K
EM Waves & Conservation of Energy
    • Electromagnetism
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top