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Can we have a thermoelectric effect without having a PN junction?

2018-12-07

Nope.The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa via a thermocouple.

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Are the peak input and output voltages of the half wave diode rectifier equal?

2018-12-07

No. They are not equal. A rectifier is an electrical device which converts alternating current (AC) to direct current (DC), which flows in only one direction. The process is known as rectification.(Wiki)

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Is nodal analysis applicable to both DC and AC supply?

2018-12-07

Yes,nodal analysis is applicable to both DC and AC.

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Is there any problem if I use regular single-strand wire for solar connection?

2018-12-06

Not really. We can only say that the same wire diameter, the conductivity of multi-strand wire is larger than that of a single-strand wire, because the current passes through the surface of the wire and the surface area of the multi-strand wire is bigger.

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What is the diameter of a wire? How is this determined?

2018-12-06

If you know the square of wire, you can calculate the radius of wire by using that the formula for calculating the circular area, then diameter = 2 * radius ; Likewise, if you know the diameter of the wire, you can also calculate the square of wire

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How do I make a simple ON/OFF sensor with LED?

2018-12-06

Well, you may need to prepare these stuff, that is: A LAS ( light activated switch ) A LED Two Photosensitive resistors Batteries

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Would a house electric circuit show any voltage when its circuit breaker is off?

2018-12-05

Nope. The house electric circuit wouldn’t show any voltage anymore.

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What type of transformer is called a step-down transformer?

2018-12-05

Step-down transformer: The higher voltage at the input end is converted to the ideal voltage with relatively low output, realizing the voltage reduction.

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Is the directional antenna possible to direct a signal to specific coordinates?

2018-12-05

Directional antenna: It is an antenna which radiates or receives greater power in specific directions.

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What happened if the DC voltage in the clamping circuit is replaced by AC source

2018-12-04

Obviously, the clamping circuit can’t work as normal.

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