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Unable to calculate Thevenin resistance

I was taught differently... Maybe you can omit the 200 ohm resistor. But, now I'm curious. As I understand, a Thevenin model is supposed to reduce a circuit such that you can model how the Thevenin ...

Curious about the math portion of subjects

Yes and no. Depends heavily on what you do with your electronics. Both Laplace and Fourier are useful, both conceptually and on a symbolical level. Fourier being relatively simple so have found myself ...
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1 vote

Curious about the math portion of subjects

The answer has to do with whether or not you want to be able to solve problems in the field. If you don't, then you do not have to worry about mastery of the math because you'll never be using it. If ...
• 14.9k
Accepted

Unable to calculate Thevenin resistance

The 200 ohm resistor is a red herring. It's in parallel with a voltage source with 0 internal resistance. You should disregard it. By red herring I mean it's a silly complication to a simple problem. ...
• 246

Converting string vibration to electricity

The short answer, "No." It is easy with an amplifier but it is not going to happen without some source of external power. In the meantime, if all you want is to light an LED, the ...
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Can I perform a hard reset of a USB flash drive?

You can use the Windows command line utility diskpart. Read the documentation carefully as it can cause loss of data if you don't identify the drive you want to work on correctly. It can make you lose ...
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Why is the sum of a full adder a 3 input XOR?

If you think of an XOR gate as performing modulo 2 additionâ€”essentially adding together bits b1, b2, ..., bn and taking the result modulo 2â€”then all configurations of the XOR gate can be understood as ...
1 vote

Why are trams always electrified with DC, while trains can be electrified either with AC or DC?

It's not true that onboard rectification is required to enable speed control. Several early rural electric trams in France ran on fairly high AC voltages. That in Haute Vienne being typical. In rural ...
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