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# Home Electricity

## The majority of homes in the world include electric circuits for lighting and power to appliances. Some provide cooking and heating through electricity.

###### 19,808 Questions

How much energy every second would a 100 watt light bulb use?

A potência de uma lâmpada é medida em watts (W), e essa unidade já representa a quantidade de energia consumida por segundo. Portanto, uma lâmpada de 100 watts consome 100 joules de energia a cada segundo.

Em termos mais específicos:

• 1 watt = 1 joule por segundo.

• Assim, uma lâmpada de 100 watts consome 100 joules de energia por segundo.

Então, se você quer saber a energia consumida por segundo, é exatamente 100 joules.

What is a power supply?

A power supply gives electrical power to all the components and parts of the computer. The power supply consists on several wires that connect to specific parts of the computer. Examples are the IDE/SATA CD/DVD Drive, IDE/SATA Hard Disk Drive, the motherboard, etc. Power supplies are only a computer part in a desktop computer, NOT a laptop computer.

How do you know what your ring size is?

You can determine your ring size with a ring sizing chart or by consulting a jeweller. Measure the circumference of the finger by wrapping a string or a strip of paper around the area, then matching it to a sizing guide. The ring should fit comfortably on your finger, with consideration to be given to the knuckle and the width of the band.

What happens to voltage when resistance increases?

Ohm's law states that "The current is directly proportional to the applied EMF (voltage) and inversely proportional to the resistance in the circuit."

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if resistor exists, resistance decreases

according to ohm's law, current is directly proportional to voltage and current is inversely proportional to resistance

it means as current increases, voltage increases.

resistance increases, current decreases so as voltage

if there is no resistor, there should be no resistance except internal resistance of voltmeter and ammeter

What is the depth for electrical conduit?

The depth at which electrical lines should be buried can vary depending on several factors, including the type of electrical line, local building codes, and regulations. Here are some general guidelines:

1. Residential Power Lines: In most residential applications, electrical lines, such as service entrance cables or underground feeders, are typically buried at a depth of 18 to 24 inches (45 to 60 cm). However, local codes may require deeper burial depths, so it's essential to consult the specific regulations in your area.

2. Commercial and Industrial Power Lines: For commercial or industrial installations, the burial depth of electrical lines is often greater than in residential settings. Depths can range from 24 to 36 inches (60 to 90 cm) or even deeper, depending on the type of electrical line, voltage, and local codes.

Hope it works for you.

What is the meaning of PDX wire?

Named after Phelp Dodge the maker of (PDX) brand

Roomex is another brand of Non-Metallic Sheated

Where is a smart meter installed?

A smart meter is typically installed at the point where the electrical, gas, or water service enters a building. For electricity, it’s usually placed near the main electrical panel. For gas and water, it is installed at the entry points of the respective services into the property.

How do you convert kvar to amps?

At what voltage? When you know the voltage then, to get the amps those kilovolt.amps contain, you simply divide the kilovolt.amps by the voltage.

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You can't convert kVA (kilovolt.amps) to amps unless you know either the source voltage (as was explained above here in the first answer) or the load resistance which is drawing the current from the source.

If you know them both you can use Ohm's Law to get the amperage:

I = V / R

In words, Ohm's law is:

Current (amps) equals voltage divided by resistance (ohms)

What are the ingredients of ballast?

Ballast typically consists of materials such as gravel, crushed stone, sand, or slag. These materials are placed beneath railway tracks to provide stability, support, and drainage for the tracks. The specific composition of ballast can vary depending on the location and requirements of the railway system.

What is stronger 4 amps or 12 volts?

12 volts is not a measure of strength, but rather a measure of electrical potential. Amps measure the strength or intensity of an electrical current. In this case, 4 amps would be stronger than 12 volts, as it indicates a higher current flow.

How many watts is an Orion cs 100.2 amp?

The Orion CS 100.2 amp is rated for 100 watts RMS per channel at 2 ohms.

How hot is 1250 watts?

The heat output of 1250 watts depends on the application. In terms of a space heater, it can generate around 4,200 BTUs of heat per hour, which can effectively heat a small to medium-sized room. However, in terms of cooking appliances like ovens or stovetops, the temperature may vary widely depending on the efficiency and design of the appliance.

Can you use 14-2 gauge wire for a 1000 watt microwave?

Yes, you can use 14-2 gauge wire for a 1000 watt microwave, as long as it is on a 15 amp circuit. It is important to check the manufacturer's specifications and local electrical codes to ensure proper wiring for the appliance.

Why are lights dim after the switch was replaced?

Dim lights after a switch replacement could be caused by using the wrong type of switch, loose wiring connections, or issues with the electrical circuit. Check that the new switch is compatible with the light fixture, tighten any loose connections, and ensure the circuit is providing the correct voltage. If the issue persists, consider consulting a qualified electrician for further troubleshooting.

What devices shutdown immediately if a short circuit occurs?

Devices with built-in short circuit protection mechanisms such as laptops, smartphones, and power banks are designed to shut down immediately when a short circuit occurs to prevent damage to the device or the user. This protection is commonly implemented using fuses, circuit breakers, or electronic protection circuits.

What can you run on a 900 watt generator?

A 900 watt generator can typically run small appliances such as a refrigerator, fans, lights, computer, and some power tools. It may not be able to power larger appliances like air conditioners or washing machines. It's important to check the specific power requirements of each device before connecting them to the generator.

What appliances use 13 amps?

Appliances that use around 13 amps include hair dryers, microwaves, and space heaters. Make sure to check the specific amperage of your appliances before use to avoid overloading circuits.

How many amps are in 280 watts with 120 volts?

W = Amps times Volts. A = W/V, A = 300/120 = 2.5 amps

When can a blue wire be used as a neutral?

A blue wire can be used as a neutral wire when it is specifically designated for that purpose in a country's electrical code or when it is identified as such by markings or labeling. It is important to always follow local electrical codes and regulations when using wiring for safety reasons.

Which one is having lesser resistance . if a 220V 60W bulb or 220V 40W bulb?

A 60 watt incandescent bulb using 120 Volts draws about one-half amp.

Watts = Volts x Amps (For a resistive load).

By Ohm's Law Volts = Current x Resistance so R = 120 V / .5 A = 240 Ohms.

Doing the same math for a 40 watt bulb you get 360 Ohms.

What is transmission line amps rating?

The amp rating of a transmission line is the maximum current that can safely flow through the line without causing damage. This rating is based on the material, size, and design of the transmission line to ensure it can handle the electrical load without overheating or overloading. It is important to adhere to this rating to maintain the safety and efficiency of the transmission line.

How to compute watts to amps single phase?

To convert watts to amps in a single-phase electrical system, divide the power (in watts) by the voltage (in volts) and then divide the result by the power factor. The formula is: Amps = Watts / (Volts * Power Factor). This will give you the current in amperes drawn by the load.

What wire should you use in 300 amp three phase circuit breaker?

For a 300 amp three phase circuit breaker, you should use wire that is rated for at least 300 amps. The wire gauge needed will depend on the material (copper or aluminum) and the installation method (conduit or cable), so it's recommended to consult with the National Electrical Code (NEC) or a qualified electrician for the specific wire size required. Using the correct wire size is crucial to ensure safety and prevent overheating.

How many watts does a tablet use?

A typical tablet consumes around 5-10 watts of power during normal operation. The power consumption can vary depending on the tablet model, screen brightness, and apps running in the background.

Is a 1000 watt load that operates for one hour consumes the same about of energy as A100 watt load that operates for 10 hours?

No, the 1000 watt load operating for one hour consumes 1000 watt-hours of energy (1 kWh), while the 100 watt load operating for 10 hours consumes 1000 watt-hours as well. The total energy consumption is the same in both cases.