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Q&A

Posts tagged electromagnetism

2 child tags

Anything about the general laws of electromagnetism and related phenomena as applied to electrical engineering.

This tag doesn't have a detailed wiki yet.

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Q&A How to calculate the voltage of a coil?

Hi guys, I need to calculate the voltage that will center the magnetic field of a coil. The coil gonna be used in an induction heater thank you. Edit: I edited the paragraph because it was misu...

3 answers  ·  posted 1y ago by deleted user  ·  edited 8mo ago by Lorenzo Donati‭

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+2 −1
Q&A What is causing this massive discharge traveling down a power line?

What is causing this [ABC-news video via Twitter] spectacular power-line phenomenon? [image: still from ABC News]

1 answer  ·  posted 3y ago by Pete W‭  ·  edited 8mo ago by Lorenzo Donati‭

75%
+4 −0
Q&A MOV vs. TVS diode

Simple thing that I realized I should know but do not -- when is an MOV preferable to a TVS diode (with some associated network to really make it work, in both cases)? Is it even something to routi...

2 answers  ·  posted 3y ago by Pete W‭  ·  edited 8mo ago by Lorenzo Donati‭

71%
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Q&A Is there an easy way to measure the characteristic impedance of a cable using basic lab instruments?

As the title says, I'm interested in a simple technique to measure the characteristic impedance of a cable using only the instruments available in a school lab or to a (somewhat advanced) hobbyist....

1 answer  ·  posted 9mo ago by Lorenzo Donati‭  ·  edited 8mo ago by Lorenzo Donati‭

75%
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Q&A ESD USB Shield Connection & Filtering

I have a handheld ARM Cortex M based device, which has a USB input port. The product is battery powered and there is no metal chassis. We are going through CE testing, and are having ESD issues a...

4 answers  ·  posted 3y ago by leroy105‭  ·  last activity 2y ago by Pete W‭

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Q&A Can there be a global EMP disaster, whether totally natural or partially natural and partly artificial?

I have no record in electrical engineering; this is a total outsider question which might be grasped absurd. Wikipedia defines EMP as: An electromagnetic pulse (EMP), also sometimes called a tr...

1 answer  ·  posted 3y ago by deleted user  ·  edited 3y ago by Lundin‭