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How much electricity is really used when one 220 voltage 150 watts bulb being plugged in 110 volts supply?
The current through a 220 volt 150 watt bulb is I = W/E = .68 amps.
The resistance of that bulb is R = E/I = 324 ohms.
The wattage used by the 220 volt bulb when 110 volts is applied W = E(sqd)/R = 37 watts.
Half the voltage with the same resistance will quarter the wattage output.
What else can I help you with?
What is the different between domestic and industrial electricity supply?
Electricity for industries are supplied with high voltage.Domestic supply is with low voltage.
Why voltage drops after storm?
Your voltage shouldn't drop after a storm, unless there's widespread disruption to the electricity supply.
Why used transformer in subststion?
The substation is there to convert a high voltage to a lower voltage for electricity supply. Transformers are needed to do this.
What is the normal voltage of electricity for house in Singapore?
The standard voltage for electricity supply in household buildings in Singapore is 230 volts.
Can a 110 volt device be plugged into a 125 volt outlet?
Yes, a 110 volt device can be plugged into a 125 volt receptacle. The voltage rating on the receptacle is only there as the highest voltage supply that the manufacturer recommends their equipment be connected to.
What is voltage required for desktop?
Desktop computers all come with a power supply that changes the mains voltage in your country's electricity supply to that needed inside the PC. Thus the Voltage used by your PC is the mains voltage in the country where the PC was sold.
How does a transformer for a doorbell work?
A transformer for a doorbell works by converting high voltage electricity from the main power supply into lower voltage electricity that is safe for the doorbell to use. This lower voltage electricity is then sent to the doorbell to power it and make it ring when the button is pressed.
What happens if you trip a GFCI repeatedly on purpose?
Every time you trip the GFCI, the power to the device plugged into it will lose its supply voltage.
How do you supply electricity to a block of flats?
To supply electricity to a block of flats, a utility company typically provides power through a main electrical supply line that connects to a dedicated transformer. This transformer steps down the high-voltage electricity to a lower voltage suitable for residential use. From the transformer, electrical wiring distributes power to a centralized distribution board within the building, which then feeds individual flats through circuit breakers and meters. Each flat is equipped with its own electrical panel to manage the supply and consumption of electricity.
Does a fan use DC electricity?
A fan can use both voltages depending on what the manufacturer nameplates the motor voltage to be. AC is the most common voltage but some smaller fans like power supply fans in computers use a DC voltage. Check the fan motor's nameplate to supply the correct voltage.
Why is 110v televisoin set damage when plugged into a 220v source?
Because it is designed for 120 volts. Internal voltages and current derived from the supply voltage are out of specification and will likely cause failed components that are not compatible with the higher voltage.
Does a computer's power supply generate electricity?
In short, no. The power supply takes the alternating mains voltage and reduces it to the low voltages and direct current needed by the components of your PC.
