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INDUCTORS!

INDUCTORS!. -What are they? -What do they do? -What do they look like? -How do they work? -Who uses them? -Why do they use them? . Brief History….

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INDUCTORS!

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  1. INDUCTORS! -What are they? -What do they do? -What do they look like? -How do they work? -Who uses them? -Why do they use them?

  2. Brief History… In 1831 a physicist by the name of Michael Faraday believed that if an electric current could produce a magnetic field then a magnetic field could in turn generate and electric current. This principle is known as “Induction”.

  3. So what is an Inductor? The wire you see below in the shape of a spiral, that’s an inductor. What other shapes do you think they can be? Make your own inductor any shape you want connect it and see what happens…

  4. What do they do? Basically inductors store energy in a magnetic field that is generated by a current carrying wire shaped into pretty much any shape you need or want. But what is a magnetic field? I don’t think anyone really knows but ask a scientist to see what they tell you.

  5. What do they look like? You can make them any shape you want to. You should try few different shapes to see what happens? There are a few objects there you can shape them with. (i.e. prism, blocks, tube etc…)

  6. How do they work? Thanks to Faraday we know that a current carrying wire produces a magnetic “field”. So when this wire is shaped into a loop/spiral these fields interact with each other. In this process energy can be stored. There it is again that word “FIELD” Did you ask a scientist yet? What are you waiting for?

  7. Who uses them? Here at the lab it’s safe to say that almost everyone uses them. Below I have a prototype tank circuit (little silver aluminum box). This circuit is placed in a probe which is then placed in a magnet. Can you find an inductor in the prototype tank circuit?

  8. Probe, Coil & Oscilloscope

  9. Try Some things… • Stretch the coil you made. What happens to the graph on the oscilloscope? • Compress the coil you made. What happens? • Run the probe (black wire with copper coil on end) in and out of your coil. What happens? • Run the probe on the outside of your coil what happens?

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