When a magnet is dropped through the copper pipe, why does it fall slower than the...
When a magnet is dropped through the copper pipe, why does it
fall
slower than the aluminum pellet? Is energy conserved when magnet
falls? If not, where does
the missing (or gained) energy go (or come from). How would this be
different if the pipe was
made of PVC?
Homework Answers
This is an excellent demonstration of Lenz's law and eddy currents.
Magnetic fields are the result of electric currents. Changing a magnetic field (moving a magnet) next to a non-magnetic metal will induce an electric field (a voltage difference) in the metal, which subsequently generates a magnetic field with an opposite orientation with respect to your magnet.
When your magnet moves next to a metal it creates these fields, but the fields act in a very specific way. They want to cancel out the magnetic field in the metal, because metals don
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When a magnet is dropped through the copper pipe, why does it
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answer all Q pls
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Please answer question 2.
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answer all Q pls
8. A bar magnet is dropped through a loop of copper wire as shown. Recall that ou magnet, magnetic field lines point away from a north pole and toward a south p positive direction of the induced current I in the loop is as shown by the arrows on the loop, the variation of I with time as the bar magnet falls through th by which of the following graphs (the time when the midpoint of...
Please answer question 2.
Quastion 1 answer is already provided in the photos.
1. At an outdoor lot, there is a black-colored solar heat collection copper pipe. It is 50 meters long, 10 cm in inner diameter and 10.2 cm in outer diameter. The pipe is set horizontally. Assume that solar radiation in 1.0 kW/m2 shines on the entire surface of the pipe and convert 90% of the solar energy on the pipe into heat. There is water in 25...
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