watts to amps

Submitted: Friday, Sep 09, 2005 at 16:53

ThreadID: 26311 Views:2522 Replies:5 FollowUps:2

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Member - Ross H (QLD)

I have a 12v mozzie coil that uses 8watts. Was just wondering if one of you educated sparky type people could tell me how many amps that would be.
Thanks in advance
ross

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Reply By: hl - Friday, Sep 09, 2005 at 16:59

Friday, Sep 09, 2005 at 16:59

About .6 amps at 13.8V
cheers

AnswerID: 129341

Follow Up By: F4Phantom - Friday, Sep 09, 2005 at 17:07

Friday, Sep 09, 2005 at 17:07

just thought you may also want to see it this way.
W=AxV
A = W/V
V = W/A

FollowupID: 383818

Reply By: Bob of KAOS - Friday, Sep 09, 2005 at 17:02

Friday, Sep 09, 2005 at 17:02

Power(in Watts) = Voltage (in Volts) X current (in Amps).

So current = Power/Voltage or 8/12 which is 0.66 Amps

AnswerID: 129342

Reply By: Notso - Friday, Sep 09, 2005 at 17:02

Friday, Sep 09, 2005 at 17:02

Divide your watts by your volts.

8/12 should work out at about .66 of an amp. Most "12 volt" systems are a bit more than that so the eqaution will vary depending on the state of charge of the battery or whether it is running off a "12 Volt" power supply which will be up to about 14 volts depending on the overall load.

AnswerID: 129343

Reply By: Member - GeeTee (NT) - Friday, Sep 09, 2005 at 17:05

Friday, Sep 09, 2005 at 17:05

Hi, The formula for Amps is P/E, where P is power in watts, E is voltage.

Gives you 8 divided by 12. Which equals .666 A or approx 666 MilliAmps.

Check out this Link

Hope the link works and the info is useful to you.

GeeTee

AnswerID: 129345

Reply By: Member - Ross H (QLD) - Friday, Sep 09, 2005 at 20:10

Friday, Sep 09, 2005 at 20:10

Thanks for all the replies. I am off camping in the morning and only have 115ah deep cycle just for lights,mobile charger and now mozzie coil will well and truely last a week. Straddie hear I come.

regards ross

AnswerID: 129376