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5 votes
3 answers
1k views

LED circuit seems to defy Ohm's law. Of course it’s something else

1 vote
1 answer
40 views

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0 votes
0 answers
52 views

AC Power Balance Equation

1 vote
1 answer
113 views

Resistor in RC circuit

0 votes
1 answer
53 views

Certification - wall-plug power supplies

4 votes
3 answers
377 views

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1 vote
2 answers
103 views

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0 votes
0 answers
26 views

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0 votes
2 answers
314 views

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1 vote
2 answers
196 views

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11 votes
5 answers
4k views

Does reactive power cause extra fuel use in a Diesel UPS?

1 vote
2 answers
58 views

Detect if the device is connected to a USB 2.0 or a USB 3.0 port

0 votes
0 answers
22 views

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0 votes
1 answer
77 views

100 kHz Class D Amplifier with out Transfomer

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