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An electric motor takes 5A from a 220 V line Determine the power of the motor and the energy consumed in 2 hours?
Power is current times voltage, that is, 5 x 220 = 1100 Watts, or 1.1 kW. That's 1.1 kWh/hour, or 2.2 kWh in 2 hours.
Note: The formula power = current x voltage is only valid if current and voltage are in phase. If they are not, power may be somewhat lower. (A "power factor" must be included in the calculations in this case, this power factor may be less than one.)
What else can I help you with?
How many units of electrical energy is consumed by a 3 kW stove which is switched on for 6 hours?
18kwh
How do you calculate Kwh saving after installing capacitor bank?
Adding a capacitor bank makes absolutely no difference whatsoever to the amount of energy consumed (in kilowatt hours). The capacitor bank might reduce the load current, but this does not affect the amount of energy consumed. Anyone who tries to sell you a 'capacitor bank' in order to save you energy is selling a SCAM!
How do you calculate kwh?
The unit kWh is a unit of energy, which is power multiplied by time. Multiply the power of the equipment (measured in W or kW) by time used (measured in h) and you get the energy in kWh.Examples:A power of 1 kW over a time of one hour is one kWh. A 100 W (0.1 kW) bulb left on for 5 hours uses 0.1 x 5 = 0.5 kWh.If your home uses an average of 500 W (0.5 kW) then it will consume 12 kWh per day (24 h).Also not the correct capitalization. Only the W (watt) is capitalized, the k (kilo = 1000) prefix and the time unit h (hour) are not.Simply, multiply power (kW) from the time (in hours) the equipment has been used..P (kW) x t (h) = Pt (kWh)
How do you calculate current consumption per hour?
You are confusing energy and current. You consume, and pay for, energy -not current.For the purpose of billing its customers, an electricity utility measures energy in units called kilowatt hours. In the UK, a kilowatt hour is also called a 'unit', short for 'Board of Trade unit'. The Board of Trade, which no longer exists, used to be the government organisation responsible for setting energy prices.A unit, or kilowatt hour, of energy is the amount of energy consumed at the rate of one kilowatt over a period of one hour. So, to determine the number of units that an electrical load 'consumes', you simply multiply its power in kilowatts by the time for which it operates, in hours.
Why are electric meters connected in series with the rest of the circuits in the house?
Electric meters are connected in series with the rest of the circuits in the house because, that way, the meter can measure the current used by all of the circuits in the house. The meter integrates and records the current as power in kilowatt-hours.Another AnswerActually, energy meters are not simply 'connected in series' with the rest of the circuits in a house.In simple terms, an analogue energy meters contain twocoils: a current coil and a voltage coil. The current coil is, indeed, connected in series with the rest of the household circuits, but the voltage coil is connected in parallelbetween the line and neutral conductors. This means that the energy meter is monitoring the (in-phase) load current and the supply voltage, and the torque produced by the resulting magnetic fields is proportional to the power of the load.Power is a measure of the rate of energy consumption and, so, to determine the energy consumed by the load, the meter's combined magnetic fields drive a disc which, as it rotates, drives dials that record the amount of energy consumed over a given period (between meter readings). Energy (notpower!) is expressed in kilowatt hours (kWh).
Electric energy usage on your electric bill is measured in?
Electric energy usage on your electric bill is measured in kilowatt-hours (kWh). This indicates the amount of electrical energy consumed over a period of time.
How do electric companies calculate electric energy being used?
Electric companies typically calculate electric energy usage by measuring the amount of electricity consumed in kilowatt-hours (kWh). This is done using electric meters that monitor the flow of electricity into a property over a given period of time. The total energy usage is then calculated based on the amount of power consumed and the duration of usage.
What does an electric company use to determine how many kilowatt hours of energy are used by a household?
An electricity meter
How how does watt to energy work?
Watt is a unit of power, which measures the rate at which energy is consumed or produced. Energy is the total amount of work done over time. To calculate the energy consumed or produced, you multiply the power (in watts) by the time (in hours) the device is operating. This gives you the total energy in watt-hours.
How do electric companies calculate electric energy used?
Electric companies calculate electric energy usage by multiplying the power consumption (in kilowatts) by the time the power is consumed (in hours). This formula is expressed as kWh (kilowatt-hour) and is how customers are billed for their electricity usage.
How can I determine the amount of electricity consumed by a device or appliance?
To determine the amount of electricity consumed by a device or appliance, you can use a device called a wattmeter or check the device's power rating in watts and the time it is used to calculate the energy consumption in kilowatt-hours.
Specific energy consumption in electric traction?
Specific energy consumption in electric traction refers to the amount of energy consumed by an electric vehicle to travel a specific distance. It is typically measured in kilowatt-hours per unit distance (such as kilowatt-hours per mile). Lower specific energy consumption values indicate a more energy-efficient vehicle or system.
Electric energy usage on your electric bill is measured how?
Electric energy is measure in Units which are kilowatt-hours. Your electricity meter records the usage in Units over the billing period. The meter measures the true power and not the volts times the amps.
Electric power and energy?
Energy Is an interdisciplinary engineering science having to do with the efficient
How kilowatt hours affect your electric bill?
The energy accumulated by your electric meter represents the number of kilo-watt-hours (kWh) you consume. We pay for energy on a tiered scale, and the cost per kWh consumed monthly up to -- say 600 kWh -- is typically low and in the range of 8-12 cents per kWh. Energy consumed above 600 will carry a higher price, like 20 cents per kWh. There may even a third tier at say, 30 cents per kWh for energy consumed above 2000 kWh. Depending on where you live, you may expect the kWh you consume to affect your electric bill in a similar manner.
What does the electricity meter record?
The electricity meter records the amount of electric energy consumed by a household or building in kilowatt-hours. It measures the total electricity usage over a period of time, allowing for accurate billing and monitoring of energy consumption.
What is one source of energy you consumed in the past 24 hours?
Sleeping resting
