Electrical Wiring

Resistance depends on the length and the thickness of the wire apart from the material with which it is made.

But specific resistance or resistivity depends only on the material. So the question is to corrected as, ' What is the resistivity of gold material?'

Voltage can be calculated using Ohm's Law, which states that voltage (V) equals current (I) multiplied by resistance (R): V = I * R. This formula helps determine the potential difference across a circuit when given the current flowing through it and the resistance present.

The main advantage offered by an HRC fuse is that, when a fault current condition occurs, a tremendous amount of heat is created within the fuse. That heat melts the silica sand filling of the fuse into glass. Glass, being an insulator, suppresses any arc-over and breaks the circuit instantaneously. This behavior minimizes the possibility of a continuing - and dangerous - "high arc current" situation from developing, which is what happens if a normal fuse fails to break a heavy fault current.

Compared to normal, "non-HRC" fuses, the main disadvantage of using an HRC fuse is that they cost a lot more to make - and to buy - because of the extra materials they contain. But choosing to use an HRC fuse instead of a normal fuse makes very good sense if the equipment that needs to be protected - or other equipment nearby - would be very expensive to replace if it all went up in smoke just because of a fuse which was not capable of stopping a high fault current flowing.

So, if some expensive electrical equipment was supplied with one or more HRC fuses installed to protect it, you would be very foolish indeed to replace them with normal "non-HRC" fuses.

With the same load current the AA will last longer that the AAA. This is due to the physical size of the cells. A C cell will last longer that a AA and a D cell will last longer that a C cell. In dry cells as the cells get larger the amp/hours increase.

When a person's work and heat output exceeds the energy consumed, it implies that they have generated surplus energy. This surplus energy can either be stored for future use or dissipated as waste heat, depending on the system's design and constraints. Overall, it indicates a case of energy efficiency and potentially increased productivity.

Yes, in a 4-wire electrical service, the neutral wire is included along with the hot wires and ground wire. The neutral wire is used to complete the circuit and provides a return path for the current to flow back to the source.

As posted, the question doesn't make much sense - do you mean spur sockets, rather than plugs? Either way, it will depend on local regulations. In the UK, you can fit one socket on a spur from a socket on a ring main.

Having 180 volts on a phase in a house could indicate an issue with the electrical system, such as a loose connection, faulty wiring, or a problem with the transformer. It is important to have a licensed electrician inspect and resolve the problem to prevent any safety hazards or damage to appliances.

Yes, plugging a 230V single phase motor into a 277V single phase power supply can potentially damage the motor due to the higher voltage. It is recommended to match the voltage ratings of the motor and power supply to prevent any issues.

The third prong (grounding prong) and ground wire are necessary for safety reasons. They provide a path for excess electric current to safely discharge into the ground, reducing the risk of electrical shock or fire in case of a fault. It helps protect both the appliance user and the appliance itself.

Unbalance. Large amounts of unbalanced current can cause negative sequence and ground relays to operate. There are many problems that result from "too much" unbalance. Understand that no system is perfectly balanced, though.

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If the load is balanced there will be no current flowing in the neutral. For that reason a neutral wire is sometimes not connected to a balanced three phase load. An unbalanced load will cause neutral current to flow, if a neutral is connected.

due to unbalanced load ,some current will flow through the neutral wire.hence due to I^2R losses voltage drop will occur in neutral.so the voltage regulation will decrease.

A short straight to ground. Unplug and disconnect everything from the circuit and then reconnect things one at a time until the breaker trips. That is your problem. (Also could be a bad breaker)

You will need to replace the 3-prong outlet with a 4-prong outlet to match your dryer cord. Alternatively, you can replace the cord on your dryer with a 3-prong cord that matches the existing outlet. Make sure to consult a professional if you are not comfortable with electrical work.

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

Use the formula I = W/E, Amps = Watts/Volts. Apply the voltage of the generator to the formula and the results will be the amount of amperage the generator will produce.

It is not recommended to use a 12 volt power pack on a 9 volt keyboard as it may damage the keyboard due to the higher voltage. It is important to match the voltage requirements of the device to the power source to prevent any issues.

in the olden days, electrical engineers figured if you drop razorblade or pin between the receptacle and the plug, the metal will get in contact with the ground prong thus minimizing the chance of energizing a metal object. this is why most outlets in schools and hospitals are installed ' upside down". nowadays we install them 'downside up' to see a smiling face. ha ha.

The 120 volt equipment is likely to burn up or burn out sooner. The filaments in a 120 volt bulb will burn a lot brighter for a much shorter period of time. That is how movie studios used to produce a lot of light without using expensive equipment. They would replace light bulbs every day. Electric motors would be far more powerful and run hotter. Movie studios used them for special effects. They did not care if an elevator took off like a rocket once and burned out the motor.

There is no mention in the CEC as to which way a receptacle is to be positioned. The most common way is to have the ground pin in the down position. This way, if something drops on the plug (cap) when it is in the receptacle, the last pin to disconnect will be the ground pin. Some manufactures of appliances have 90 degree plugs (caps) installed on their equipment to present a low profile when in the receptacle. The ground pin in these types of caps is positioned to the top and the hot and neutral blades are below it. On connections like this the receptacle is mounted with the ground up to allow the appliance cord to drop down when it is plugged in. Still other applications will find the receptacle mounted sideways, usually in the back splash of kitchen counters when there is an absence of space to mount them vertically.

The metal prongs of a plug are sealed in plastic or rubber to provide insulation and protection against electric shock. This covering helps prevent accidental contact with the metal prongs, which carry electricity, making the plug safer to handle and use.