How many amps does a hairdryer use?

Answer 1

That depends entirely on the hair dryer; different models have different energy consumption values.

Read the label and if necessary, use the formula:

Amps * Volts = Watts

If you know any two of the values, you can calculate the third (remember basic algebra?)

For calculation purposes, figure that the voltage in the United States is about 117 to 120.

Answer 2

Take the amount of watts the drier demands then divide by 120 volts. You will have your answer, most people call 120 110 volts and 240 220 volts. If you were going the other way to figure out the max amount of watts a 15 amp breaker could take would be by taking 120 volts multiplied by 15 amps equals 1800 watts max.

Not the same as a stove or drier which have motors, so the reverse would be the answer meaning for the stove it is normal to have a 40 amp breaker but take 6500 watts and divide by 240 volts equals 27 amps multiplied by the heat ratio it has which is 1.25 brings it up to 33 which is a safety margin.

Answer 3

power (watts) = current (amps) x voltage (volts), so

current = power / voltage

current = 1200 / 120 = 10 amps

see http://www.ajdesigner.com/phpohmslaw/ohms_law_current_power_voltage.php

Answer 4

Roughtly speaking, the power used is the product of the voltage and the current - the product of volts x amperes. Answer is in watts. (To be precise, in the case of AC, when current and voltage are not exactly in phase, there may be a "power factor" involved - but in practice, this power factor is often close to 1.)

Answer 5

Use the Power Law to work out the answer.

Power (watts) = volts x amps

Answer 6

Use P = V*I

P = 1100W and V = 120V

Solve for I to get 9.17A

Answer 7

The formula that you are looking for is W = I x E, Watts = Amps x Volts.

Answer 8

how many amps does a hair dryer use