Converting an electrical appliance with DC motor to AC watts


by Boris8879
Tags: appliance, converting, electrical, motor, watts
Boris8879
Boris8879 is offline
#1
Feb26-12, 04:26 PM
P: 3
Hi,

I'm comparing two electrical appliances, one with a DC motor and the other with an AC motor. The AC appliance has 250 watts. The DC appliance has 0.6 amps and 120 volts, and its wattage is 72. Given these specs, I would like to know which appliance would have a more powerful motor?

In addition, what would be the AC watt equivalent of a DC motor with the above specs?
Phys.Org News Partner Engineering news on Phys.org
SensaBubble: It's a bubble, but not as we know it (w/ video)
WSU innovation improves drowsy driver detection
Faster computation of electromagnetic interference on an electronic circuit board
Averagesupernova
Averagesupernova is offline
#2
Feb26-12, 05:10 PM
P: 2,452
That cannot possibly be answered without knowing more about the appliance. For instance, my dishwasher has a much more powerful motor than my electric range, yet the range consumes much more power. For those of you who think the range has no motor, you are forgetting about the clock. :)
Boris8879
Boris8879 is offline
#3
Feb26-12, 05:11 PM
P: 3
The appliance is an electric hand mixer.

cmb
cmb is offline
#4
Feb26-12, 05:19 PM
P: 623

Converting an electrical appliance with DC motor to AC watts


Quote Quote by Boris8879 View Post
The appliance is an electric hand mixer.
Just to be clear, you're asking which of a 250W hand-blender or a 72W hand-blender is the more powerful?
Boris8879
Boris8879 is offline
#5
Feb27-12, 08:33 AM
P: 3
Yes, because the 72 watt one is a DC motor with the above specs and the 250 watt one is an AC motor. Although one obviously has a higher wattage, I'm asking if it makes a difference whether a motor is a DC or AC.
russ_watters
russ_watters is offline
#6
Feb27-12, 08:37 AM
Mentor
P: 22,008
Watts is watts. It does not make a difference if they are AC or DC.

Still.....a 120V DC kitchen appliance? Doubt it.
psparky
psparky is offline
#7
Feb27-12, 09:57 AM
P: 661
Quote Quote by Boris8879 View Post
Hi,

I'm comparing two electrical appliances, one with a DC motor and the other with an AC motor. The AC appliance has 250 watts. The DC appliance has 0.6 amps and 120 volts, and its wattage is 72. Given these specs, I would like to know which appliance would have a more powerful motor?

In addition, what would be the AC watt equivalent of a DC motor with the above specs?
Your question is kinda odd.....
Let's start with a question for you:

How is AC converted to DC....in your blender for example.


Register to reply

Related Discussions
The measurement of current in electrical appliance Electrical Engineering 1
Electrical Voltage, a appliance problem Introductory Physics Homework 3
Converting Watt-hr to Watts Electrical Engineering 4
Converting 110V for 220V Appliance and Phase Distribution Electrical Engineering 7
Converting watts to kilowatts Introductory Physics Homework 2