Electrical Engineering

In electrical terminology, "DHC" typically stands for "Direct Heating Cable." This type of cable is designed to provide heat directly to a surface or area, often used for freeze protection in pipes, roofs, or walkways. DHC systems can be controlled to maintain specific temperatures, enhancing their efficiency in preventing ice formation or maintaining warmth in designated areas.

The fundamental is defined as the primary frequency of the system. In other words the fundamental of a 60 hz system is 60 hertz x 1 = 60 hz In discussions involving harmonics is is common to see terms such as the 3rd harmonic. This means that it is a frequency that is 3x the fundamental or 180 hz.

C = common S= start R= run

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with strong materials and a good strong sturdy design that holds the structure up

I assume you mean candela seconds vs candelas per second. The first is derived by multiplying candelas by time, the second is achieved by dividing candelas by time

yes

Thermal runaway is not possible in FET because of?

Flux is used to prevent oxidation while soldering wires and components in electronics.

8.2mm

Pure Phase was created on 1995-03-28.

I assume a "standing fan" is just a fan that moves air. It might have a few settings such as oscillate or slow, medium, fast for the fan speed. This is an open loop control system. There is nothing telling a controller that the fan is oscillating or not, nor is there a mechanism that is telling the fan that it is on slow, medium or high.

If the fan were to have a temperature sensor on it that would apply power if the temp went above the preset limit, this could be described as a closed loop system.

Depends on what the voltage is going from - and to.

The input is a Gate that is essentially infinite impedance, so no current. The output is essentially the resistance between Source and Drain, which controls the current flowing through it.

Yes, although you might have lucked out and tripped the breaker first.

The type of transformer that has no conservator is called a "sealed transformer" or "hermetically sealed transformer." This design eliminates the need for a conservator because the transformer is filled with oil and sealed to prevent moisture ingress. Sealed transformers are often used in applications where space is limited or in environments where contamination must be minimized. They typically have a fixed volume of insulating oil, which accommodates thermal expansion without the need for a separate conservator tank.

Start buttons are connected in parallel to ensure that pressing any one of them can complete the circuit and activate the device. This configuration allows for multiple activation points, providing flexibility and convenience for users. Additionally, if one button fails or is disconnected, the others can still function, enhancing the reliability of the system.

LBSMFT in cables refers to "Low Voltage, Braided Shield, Multi-Fiber, Terminated." It describes a specific type of cable that features multiple optical fibers enclosed in a braided shield for protection, designed for low-voltage applications. This configuration is commonly used in telecommunications and networking environments to ensure reliable signal transmission while minimizing electromagnetic interference.

something that stay at the same velocity...or dumbing it down :) is what an object is moving relative to something else.. so if there is a train and a girl watching the train the girl is a reference point because the train is moving relative of it

A Cadmium Disulphide cell. (aka Cds cell)

P=VI=I*R*I=I^2 R

P=2 therefore I^2 =2/100

I=SQRT(1/50) = 0.14142 amps

1dB = 8.86N

To find the RMS voltage across a 50-ohm dummy load dissipating 1200 watts, you can use the formula ( P = \frac{V^2}{R} ), where ( P ) is power, ( V ) is voltage, and ( R ) is resistance. Rearranging the formula gives ( V = \sqrt{P \cdot R} ). Substituting the values, ( V = \sqrt{1200 , \text{W} \cdot 50 , \Omega} = \sqrt{60000} \approx 244.95 , \text{V} ). Thus, the RMS voltage across the load is approximately 245 volts.

It depends on what part of the world it is in and what the usual control voltage is in that part of the world.

The voltage drop in any branch (closed loop) of a series parallel circuit is equal to the APPLIED VOLTAGE(NOVANET)

Without looking in my codebook, I believe it is 2% on a branch circuit.