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ppt
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Hertz produce radio wave when he made an electric spark.
Why is that spark neccessary?
Why is that spark neccessary?
I understand spark was just a "side effect".HallsofIvy said:It isn't "necessary"-it was just convenient with the equipment he had. what he needed to do was produce a strong electro-magnetic wave. The spark was just a "side effect".
ppt said:Then why can and the process of 'making a spark' produce a strong electro-magnetic wave?
Why can the oscillating current discharge energy?SpaceTiger said:The spark itself isn't what produces the wave, it's the oscillating current flow through the LRC circuit. The spark gap acts as a sort of cork stop to the circuit, allowing the capacitor to build up until the potential difference across the spark gap is high enough to form a spark. Once it does this, the LRC circuit is completed and the capacitor is free to discharge, dissipating energy in the form of radio waves in the process.
ppt said:Why can the oscillating current discharge energy?
Why is the energy in the form of radio waves?
Hertz's Spark refers to the discovery made by German physicist Heinrich Hertz in 1887 that demonstrated the existence of electromagnetic waves, which were previously only theorized by James Clerk Maxwell.
Investigating Hertz's Spark is necessary because it provided the foundation for the development of wireless communication technologies, such as radio, television, and cell phones. It also helped to confirm the validity of Maxwell's theories and paved the way for further advancements in the field of electromagnetism.
Hertz conducted his experiment by building a device that could produce and detect electromagnetic waves. He used a spark gap, an induction coil, and a loop antenna to demonstrate the transmission and reception of these waves.
The results of Hertz's experiment showed that electromagnetic waves could be transmitted and received wirelessly, confirming Maxwell's theories. He also discovered that these waves could be reflected, refracted, and polarized, further expanding our understanding of electromagnetism.
Hertz's Spark had a significant impact on modern technology, particularly in the field of wireless communication. It paved the way for the development of radio, television, and cell phones, which have revolutionized the way we communicate and access information. It also led to further discoveries and advancements in the field of electromagnetism, which have had numerous applications in various industries.