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The formula you are looking for is I = W/E. W = kW x 1000.

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Q: A hair dryer uses 1.2 kW of power when it is plugged into a 120V outlet and is turned on What is the current taken by the hair dryer?
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An electric clothes dryer has a resistance of 16 ohms It draws 15 A of current What is the voltage in volts of the wall outlet that it is plugged into?

We know that Voltage = Current x Resistance, so if E = I x R, then E = 20 x 12 = 240 volts, and the dryer must be plugged into a 240 volt outlet.


How far from a laundry tub faucet should you install an electric dryer outlet?

There is no requirement on the distance the dryer must be from a sink. Any 120 volt outlet must be GFCI protected if it is within 6 feet of a sink. There is no requirement for a 240 volt dryer outlet. I would not want the dryer right next to the sink and I would want the dryer to be on a 4 wire circuit and not a 3 wire circuit. Use common sense here.


What do the letters stand for on a 4 prong plug?

On a 240 volt outlet, such as a dryer outlet: G is Ground, W is Neutral, X and Y are the two Hot legs.


Did my dryer trip the breaker or vice versa when I turned the breaker back on but now the dryer won't work?

The dryer tripped the breaker. Have it repaired. Don't try to use it again. You could cause a fire.


What is the difference between a differential circuit breaker and a circuit breaker?

A circuit breaker is a device that opens its contacts in order to open the circuit in case of current overload. A differential circuit breaker is a device that opens the circuit in case of leakage (current measured on the phase line is differentthan the current returned to neutral line); therefore protects users from electric shocks.To more understand how it operates, consider the following:Say that your electrical wall outlet is connected to a differential breaker. When plugging let's say a hair dryer to it, the current traveling on the phase line (going into the hair dryer and out to the neutral line of the wall outlet) equals but in reverse direction of the current returned to the neutral line, thus the difference is zero. Now let's say this hair dryer got faulty and fraction of the current coming from the outlet phase line travels through your body and return to earth (considering that you are not electrically isolated from the ground). Thus the current in neutral line is less than the current on phase line; at this moment the difference is not zero and breaker opens to protect you from getting electrocuted.

Related questions

Will an electric dryer shock if it is plugged into an electric stove outlet?

You bet it will.


An electric clothes dryer has a resistance of 16 ohms It draws 15 A of current What is the voltage in volts of the wall outlet that it is plugged into?

We know that Voltage = Current x Resistance, so if E = I x R, then E = 20 x 12 = 240 volts, and the dryer must be plugged into a 240 volt outlet.


What is the current in the hair dryer if it is plugged into a 110- V outlet?

Without knowing the wattage that the hair dryer is rated at an amperage can not be stated. If you find the wattage, use this equation to find the amperage. I = W/E, Amps = Watts/Volts.


Why does a clothes dryer requires a 220 volt outlet while a toaster only requires a 110 volt outlet?

Because a toaster does not pull near the current that a cloths dryer does.


Why does a clothes dryer require a 220 volt outlet while a toaster only requires a 110 volt outlet?

Because a toaster does not pull near the current that a cloths dryer does.


What happens when a hair dryer is plugged in and turned on?

Hot hair in blowen out which tends to absorb the moisture from your hair .


Can a 240v be plugged in to a 220v socket?

In some parts of the world, an 1875 watt hair dryer can and does use 220 volts from a 220 volt outlet?


Can getting shocked by a 120 Volt electrical outlet mess up your heart-not immediately but later?

I have the same question, especially if the outlet was a heavy duty vending machine outlet. After I plugged a hair dryer into it, something went wrong. I recovered, but my health hasn't been the same.


Can a 120 hair dryer work with a 110 outlet?

Yes - a hair-dryer rated at 120 volts will work in a 110 volt outlet.


Where do you plug in a hair dryer?

in a power outlet


What if you have four wires running to your dryer outlet and the outlet is only a three prong one wire is just hanging out is this really even safe?

Have the outlet changed to match the configuration of the dryer plug.


How do I wire a hot water heater to a dryer outlet?

I believe you are required by code to hardwire the hot water heater and not plug it into an outlet. One assumes that you are no longer using the dryer, so you could have an electrician install the proper connection box if the current dryer outlet was in the correct location. There are other rules about requiring a disconnect if you can't see the connection point from the water heater. There are lots of ways to screw this up so I don't suggest you do it if you are not qualified.