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Electrical Wiring
Ask questions here about proper wiring and electrical installation here.
4,935 Questions
Which liquid substance is an insulator of electricity?
One example of a liquid substance that is an insulator of electricity is purified water. Pure water does not conduct electricity well because it is a poor conductor of ions necessary for electrical conduction to occur. However, impurities in water can make it a better conductor of electricity.
What transforms electrical energy into mechanical energy?
An electric motor transforms electrical energy into mechanical energy. Electric motors have broad use throughout the world in the widest possible applications. Note that electric motors are not the only devices that convert electrical energy into mechanical energy, but they are far and away the most common ones. Another example would be a sonic or ultrasonic transducer used in sonar or sonography. Electrical energy stimulates a piezoelectric crystal, and the crystal converts the electrical energy into mechanical vibration.
Actually there are several ways to accomplish this little trick. However, the most common is probably the electric motor.
First, a little background: Every child knows how bar magnetics will push or pull each other depending on if like poles (push) or opposite poles (pull) are brought together. The next bit of knowledge is the fact that whenever an electric current flows, it produces, not only an electric field, but also a magnetic field. This is the source of the term "electromagnetic field" you may have heard about. I suspect by now you begin to see how this bit of magic works; simply concentrate this magnetic field by winding some wire into a coil, usually on a rotating shaft, provide an opposing field on one side and like field on the other and the shaft will rotate to try to align the opposing fields. Now you can use a mechanical system to switch the fields and the shaft will need to keep rotating to seek the opposing alignment again.
I'll leave the details for your research project but, effectively you have just made an electric motor!
A 60 amp electrical service panel at a 2800 square foot home would be?
If it was preinstalled, it may have been adequate at the time of installation. It depends on the power requirements of the home. If this is a new install, the NEC has a minimum of 100A for service equipment. To be honest, I would install 200A minimum to allow for future expansion.
What compound dissolves in water but does not conduct electricity?
Sugar is a compound that dissolves in water but does not conduct electricity. When sugar dissolves in water, it forms a solution, but it does not dissociate into ions that can carry an electric current.
How is a primary source different from a secondary source?
A primary source is a firsthand account or original document created during the time period being studied, such as a diary or speech. A secondary source interprets or analyzes primary sources, offering commentary or analysis, like a history textbook or scholarly article.
What is a metal that is often used in wires that conduct electricity?
Copper, and to a lesser extent gold, are used in conductors.
What causes filament in a light bulb to glow?
The filament in a light bulb glows when an electric current passes through it, heating it up to a high temperature. The high temperature causes the filament to emit light in the visible spectrum. This process is known as incandescence.
How does the principle of oppposite charges attracting help to produce lightning?
The polarization of the charges both positive and negative that occurs in a storm cloud results in the strike of lightning. Two mechanisms trigger the polarization process. One is the frictional charging and the other is the freezing process.
What can stick to a magnet but doesn't conduct electricity?
A material like plastic can stick to a magnet but does not conduct electricity. This is because plastic is an insulator and does not allow electric current to flow through it.
Why does a compass needle move when placed near a wire carrying an electric current?
A compass needle moves near a wire carrying an electric current due to the magnetic field generated by the flow of electrons in the wire. This magnetic field interacts with the magnetic field of the compass needle, causing it to align itself with the direction of the current flow.
Can you use non metallic cable in half inch electrical metallic tubing conduit?
No, non-metallic cable (such as Romex) cannot be used in electrical metallic tubing (EMT) conduit. EMT is designed to house and protect electrical wiring, so it is meant to contain only electrical wires, not non-metallic cables. It is important to use the appropriate type of wiring for the specific conduit being used.
How do you static shock some one?
Intentionally static shocking someone is not recommended as it can be uncomfortable and sometimes painful. Static shock occurs when there is a buildup of static electricity on one person that discharges to another person upon contact. If you do experience a static shock, try to discharge static electricity by touching something conductive like a doorknob before making contact with another person.
Why is a 3-way switch classified as a single pole switch?
Yes. A center point switches to either one side of the switch or the other. Just use the center and either of the other contacts. Leave one switch terminal unconnected. If you can't figure out which is the center switch point you have a 2 in 3 chance of getting it right and if the switch doesn't work you picked the one wrong choice.
It will still be a single pole but a 3 way will work. I believe you should use the connections that are on the same side. The incoming and the 3 way on the same side. Does that make sense?
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Yes you can, just make the connection between the two screws that are of different colours. When you re-install the switch make sure that the positioning of the switch is, toggle up for on and toggle down for off as there is no dot on the toggle handle to let you know the on position.
Will acetone conduct electricity dissolve in water or conduct electricity once dissolved?
Acetone is not conductive and does not dissolve in water because it is a nonpolar solvent. When acetone is dissolved in water, it does not conduct electricity because it does not ionize to form charged particles in water.
What Type Of Copper Wire Conducts Electricity Best?
Copper wire with a larger diameter (lower gauge number) conducts electricity better than wire with a smaller diameter (higher gauge number). Thicker wire has lower resistance, allowing more current to flow through it efficiently. Additionally, copper is an excellent conductor of electricity compared to other materials like aluminum.
What is phase equilibria of two component system?
Lets call the two components Phase A and Phase B. Phase equilibria of a two component system occurs when the rate of change of Phase A to Phase B is equal to the rate of change of Phase B to Phase A - meaning that the total change is zero, hence equilibrium is achieved.
What voltage should read at the outputs of a hundred amp breaker?
It depends on where the breaker is fitted. Is it installed in a panel in the US, Canada or another country which also uses the 60Hz, 120 Volts standard supply service?
Or is it fitted in Europe or elsewhere using the 50Hz, 230 Volts standard?
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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,
on electrical circuits, equipment or appliances,
always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB
SAFELY AND COMPETENTLY
REFER THIS WORK TO QUALIFIED PROFESSIONALS.
The amperage of the breaker dont determine the voltage reading. If your panel is 120v every breaker regarding of amperage rating or size will still read 120v. but to answer your question as it reads... the voltage on the output should read the same voltage as the input or line side.. that is if the breaker is in the on position.
What causes the breaker to trip on a central vac unit?
The breaker on a central vacuum unit may trip due to overloading, short circuits, or insulation issues. It could also be caused by a faulty motor, excessive dirt or debris in the system, or problems with the electrical connections. It's important to have a professional electrician diagnose and fix the issue to ensure safety.
How does a tv use electricity?
It all starts at the power supply which is plugged into your house power at one end and supplies the required voltages and currents for the various internal component at the output from the supply.
A TV is no different from other electrical appliances in that a voltage is applied to a circuit and on a good day the circuit does something useful. In a TV there is a receiver which snatches waveforms from the surrounding environment and converts these signals to information that allows the display system to show the picture on a display surface. There is also the control system that interacts with the remote control to allow you to change channels and turn the set on or off.
All these components use electricity to operate and do their job whatever it might be.
What color is ground wire for a microphone?
The ground wire for a microphone is typically green or bare copper. It is used to provide a path for stray electrical currents to safely exit, reducing interference and ensuring proper operation of the microphone.
How do you find a loose neutral wire in your house?
To find a loose neutral wire in your house, you can start by checking any outlets or switches that are not working or are showing signs of intermittent power. Use a voltage tester to check the outlets and switches for voltage fluctuations. Additionally, inspect the electrical panel for any tripped breakers or loose connections. If you're unsure or uncomfortable working with electricity, it's best to contact a licensed electrician for help.
A lamp holder is used to support and connect a light bulb to an electrical circuit. It secures the bulb in place and provides the necessary electrical connections for it to light up when power is supplied. Lamp holders come in various types to accommodate different bulb shapes and sizes, ensuring a safe and reliable connection.
Why will aluminum foil conduct electricity?
Since aluminum foil is made of aluminum, which is a metal, its structure contains metallic bonds. These bonds involve a sea of free electrons floating around the entire structure. Therefore, charge could be easily transferred due to these disassociated electrons. Aluminium conducts electricity very well.
Explain why an electric discharge occurs?
An electric discharge occurs when there is a build-up of electric charge in a medium that exceeds the medium's ability to insulate or contain the charge. This excess charge will rapidly move through the medium in the form of a visible discharge, such as lightning or a spark, to restore equilibrium.
What materials would be bad for creating static electricity?
Materials that are good conductors of electricity, such as metals, tend to be bad for creating static electricity. Additionally, materials that have high humidity levels or moisture content will also be less likely to generate static electricity.
