Electrical Engineering

High resistivity is the inverse of conductivity, and Carbon is not a good conductor (although it could be a better conductor than most hydrocarbons). Here are a few examples:

Carbon - 0.07 x 106 S cm-1 (not a good conductor)

Silicon - 1.2 x 10-5 S cm-1 (not a good conductor - used for this purpose in microchips)

Copper - 59.6 × 106 S cm-1 (good conductor)

Atoms in metals (good conductors) are held together by bonds between nuclei and their electrons. Atoms in nonmetals (bad conductors) are held together due to the atmos' sharing of valence electrons (ie covalent bonds).

Conductivity has to do with how easily electrons can move. In metals, electrons are more free to move than nonmetals, resulting in better conductivity. Silver is the best conductor, I believe. Sorry for the run around, but the basic answer to your question is this: I suspect in hydrocarbons, the valence electrons are more restricted due to the covalent bonding to the hydrogen atoms.

To convert 4.5 amps to milliamps (mA), you multiply by 1000 since 1 amp is equal to 1000 milliamps. Therefore, 4.5 amps is equal to 4500 milliamps.

Silver is a better heat conductor than aluminum. Silver has a higher thermal conductivity, meaning it can transfer heat more efficiently. This is why silver is often used in applications where high thermal conductivity is important.

Impressed voltage is the external voltage applied to a circuit, whereas induced voltage is generated within a circuit due to a changing magnetic field, typically caused by electromagnetic induction. Impressed voltage is controlled by an external source, while induced voltage is a result of the circuit's own dynamics.

A three-phase separator works by using gravity to separate oil, water, and gas that have been produced from a well. The separator utilizes different compartments and internal components such as baffles or weirs to slow down the flow and allow for the separation of the three phases based on their density. Each phase then exits the separator through separate outlets.

4160 VAC three phase three-wire delta 50/60HZ electrical power

The amperage rating of the Mission Essential Power (MEP) circuit breaker for the secondary distribution center will vary depending on the specific design and requirements of the system. It is generally sized to handle the maximum expected electrical load of the critical equipment in the facility to ensure reliable power distribution in case of an outage. It is recommended to consult the electrical engineering plans or specifications for the exact amperage rating of the MEP circuit breaker in the secondary distribution center.

Total voltage that you use in your home is constant. For Europe ~230V, for US ~120V. But the total power that you use differs and depends on total power consumption of the devices you use [Watt/h].

To answer this question the voltage must be given.

This will depend on the circuit configuration, and the wire.

For two equivalent types of wire (same covering, thickness, cross section, but different lengths) in a series circuit, where the surrounding on both wires is kept equivalent, heating will be equal per unit length (meaning the wires will reach the same temperature); The longer wire will use more power, which will cause more room heating (due to the longer length), but the wires themselves will reach the same temperature.

For the same two wires in a parallel circuit, the smaller wire will heat up more due to a larger current flow through it, thus a higher I^2 * R loss (heat loss) per unit length.

If two wires are put in parallel, and have different lengths, but are made to have the same resistance, the exact same amount of current will flow in each, but the shorter one will inherently have a higher resistance per unit length, causing it to become hotter than the longer wire.

If you have a 208Y/120 volt 3 phase system, you can use any one of the three phases (hot or ungrounded conductor) with the neutral for 120 volt load or you can use any two phases of the three phase for a single phase 208 volt load.

If you have a 120/240 volt 3 phase system, you can use any two phases of the three phase for a single phase 240 volt load or you can use either the A phase or C phase with the neutral for a 120 volt load. You can not use the B phase with a neutral (you would have 208 Volts!).

You can use a step-down transformer to convert three-phase 600 V to three-phase 380 V. The transformer should be rated for the desired output voltage and capable of handling three-phase connections. Make sure to consult with a professional electrician or engineer when designing and implementing this conversion.

Phase voltage is determined by the wiring of transformer that serves the building. To test phase voltage use a volt meter and put one probe to ground and the other to each phase and observe the reading, this will give you a phase to ground voltage reading. Next test phase to phase (1 to 2, 1 to 3, and 2 to 3) to see if it's 208, 240, 277, or 480. Only licensed electricians should perform these tests. DAW

The components of a watt are amps multiplied by volts. IE. w = v x a. So you can transpose the formula to arrive at the correct answer. Kilowatts, are watts to the power of three. IE. 3000Watts = 3kW

Hertz is just another name for cycles per second. In an alternating current situation a sign wave is positive for half the cycle and negative for the other half. So in a simple example of 2 HZ if the voltage starts at zero and goes positive for a half cycle (1/4 sec), it then goes negative for a half cycle (Change in polarity #1), then positive at 1/2 second (Change in polarity #2). Then positive until 3/4 seconds where it again crosses zero (3rd change) and finally at 1 sec to return to zero (4th change). Hence 50 HZ changes polarity 100 times per second.

Because the impedance of the inductor and capacitor is not a real resistance / has an imaginary value that causes voltage and current to be out of phase.

An inductor's impedance is equivalent to j*w*L (j = i = imaginary number, w = frequency in radians, L = inductance), while a capacitor's impedance is 1/ (j*w*C).

The 'j' causes the phase shift.

The current in an induction motor decreases as it accelerates due to reduced rotor impedance and increased back EMF. As the motor speeds up, the rotor reacts with the rotating magnetic field produced by the stator, causing a decrease in the current needed to maintain acceleration. This decrease in current helps to improve the motor's efficiency and reduce energy consumption.

Several reasons for different voltages. At the heart of it is that to deliver the same power, voltage and current are inversely related. The other aspect is safety.

So for the grid, high voltages are used to maximize power transmission within the current limits of the cables.

In industrial environments, equipment may require a lot of power - that requires high voltages as well

Domestic requirements are not so power-hungry so 120 or 240 volts are adequate, and are also safer (well... less dangerous) than higher voltages.

To convert amps to kilowatt-hours (kWh) for a three-phase system, you need to know the voltage. The formula for three-phase power is: Power (kW) = sqrt(3) x Voltage (V) x Current (A) x Power Factor. Once you have the kW, you can convert to kWh by multiplying by the number of hours the equipment operates.

It doesn't. Weather does not affect a breaker. But if the breaker is tripping, somewhere

the moisture from the cold could be affecting a household outlet or light fixture, because

of it leaking into a wall or area. Rare, usually it would short out somewhere and not keep happening. You trace all the outlets and lights that could be on this breaker and check everyone for lose wire or bad fixture or outlet. You also check current draw, the circuit could be getting overloaded, I have seen some really bad wiring in houses where it was against codes.

You need to have someone also check your main panel for water, I have seen water enter the meter and follow the wire into the panel like a straw, and rust the bus bars

and breaker causing a trip.

The cover must be removed, and this is the most dangerous place, so I am saying,

do not do it yourself.

Have someone that really knows electric, or call an electrician to check it.

Electricity is dangerous, and should not be done by a home improver.

Good luck with your problem.

A 16:9 aspect ratio is a standard widescreen format for TVs, which is commonly used for modern high-definition content. It offers a good balance between viewing experience for both movies and TV shows.

Electrical current is the flow of electrons, so from an atomic structure view, this would mean electrons are moving from one atom to the next; as one moves, it is replaced by another from a previous atom.

I don't believe you can make the statement that these are only valence electrons moving, but I could be wrong.

Voltage can be found using Ohm's Law, which states that voltage (V) is equal to the current (I) flowing through a circuit multiplied by the resistance (R) of the circuit: V = I x R. It can also be measured directly using a voltmeter connected across the components of interest in the circuit.

An intermediary voltage between high voltage and low voltage.

I previously wrote 69kV and 34.5kV were distribution level voltages. This is not true, these are generally considered "sub Transmission" level. Anything below ~ 33kV and above ~1kV is considered distribution. Common voltages of this range I've seen are 2.4kV, 12.5kV, 13.8kV.