Michael Faraday (1791-1867)

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Who is Michael Farady..?

British physicist and chemist, best known for his discoveries of electromagnetic induction and of the laws of electrolysis. His biggest breakthrough in electricity was his invention of the electric motor.

Born in 1791 to a poor family in London, Michael Faraday was extremely curious, questioning everything. He felt an urgent need to know more. At age 13, he became an errand boy for a bookbinding shop in London. He read every book that he bound, and decided that one day he would write a book of his own. He became interested in the concept of energy, specifically force. Because of his early reading and experiments with the idea of force, he was able to make important discoveries in electricity later in life. He eventually became a chemist and physicist.

Michael Faraday built two devices to produce what he called electromagnetic rotation: that is a continuous circular motion from the circular magnetic force around a wire. Ten years later, in 1831, he began his great series of experiments in which he discovered electromagnetic induction. These experiments form the basis of modern electromagnetic technology.

Use a non-conductive material to istlaoe the device from the faraday cage. The pulse causes current to flow across conductive materials Internal resistance develops voltage The voltage is what burns out micro circuits. Imagine lightening hitting a power pole A 30 foot pole with a grounding wire The voltage at the point of contact is 300,000 volts, a typical shot. The voltage at ground level will be close to zero.

If one could monitor the voltage on the way down, the voltage acoss one foot of ground wire would measure 10,000 volts! Any semi conductor linked across that kind of voltage is toast

The faraday cage allows the current and voltage to flow across the surface of the cage and flow harmlessly to gound The voltage across the surface is a function of the size of the cage

The bigger the cage, the higher the voltage. Therefore, as long as the devices inside the cage do not touch the cage electrically, they will not be subjected to the voltage surge

The voltage shouldn’t be in the thousands, but even a hundred volts can be bad ju-ju for micro circuits. By maintaining electrical isolation, your devices should be fine.