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Why are electrical cables black?

2019-03-05

In fact, the electrical cable can be any colors; As for those electrical cable why they are black, which lies in its dirt-proof and uvioresistant.

Why do some devices use reversed polarity DC connections?

2019-03-05

Yeah, some devices have protected diodes, which can use the reversed polarity DC connections.

What is the difference between a micro controller and PCB?

2019-03-05

Micorcontroller: A system control chip; PCB: The carrier of the microcontroller (to realize its function); Besides, all the connections of the components will be shown on the PCB.

How can an LC circuit maintain its voltage?

2019-03-04

With the generation of the feedback circuit in the diode amplification circuit, and a steady flow of the same frequency pulse, which is the essential reason why an LC circuit manitain its voltage.

Can DSP chips be described as glorified microcontrollers?

2019-03-04

Nope. DSP chips doesn’t belong to microcontrollers at all.

Why is it difficult to make non-rectangular displays?

2019-03-04

Three reasons why it’s difficult to make non-rectangular displays:

Can an ultrasonic sensor detect sound (Arduino)?

2019-03-02

I’m afraid not. Actually, ultrasonic sensor is mainly used to detect the distance instead of sound.

What does "Lo" in blood glucose monitoring system mean?

2019-03-02

In the blood glucose monitoring system, “Lo” means the blood glucose is too low to be tested, whose possible reason may be insufficient blood sampling; However, the final presice result should be combined with the clinical diagnosis.

Can all PCB be repaired?

2019-03-02

Nope. It depends. Here are four basic rules of repairing PCB for your reference:

Does Tesla Motors have any proprietary technology?

2019-03-01

Yes! Tesla Motors do have their own proprietary technology. Meanwhile, Elon Musk, the founder of Tesla announced that he has already released the patents for all the electric automobile manufacturer, which means other electric automobile manufacturers

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