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    viishnnumuckka's Avatar
    viishnnumuckka Posts: 1, Reputation: 1
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    #1

    Aug 3, 2010, 10:06 PM
    I have read that a circuit can drive a 7 ampere load.how mny watts?=7A load.
    What appliances in our home work on 7A.) how to relate the ampere to watt conversion(eg:a bulb of 15 w need how many amp of current?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Aug 3, 2010, 10:17 PM

    Power(Watts) = Volts * Amps

    120 Vac and 240 VAC are common voltages and are usually country specific. A toaster in the US will operate on 120 V, but in many parts of Europe it may be 240 V.
    kryostar's Avatar
    kryostar Posts: 108, Reputation: 11
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    #3

    Aug 4, 2010, 06:10 AM
    viishnnumuckka: you multiply your voltage times your amperage you get your wattage. ( VOLTS X AMPS = WATTS ) or (WATTS divided by VOLTS = AMPS ) or ( WATTS divided by AMPS = VOLTS) so (7amps X 110volts = 770watt ) or (7amps X 240volts = 1680watts) (15watt light divided by 110volts = 1.36amps) hope this helps.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #4

    Aug 4, 2010, 06:18 AM

    Actually 15/110 = .136 amps.
    120 volts X 7 Amps = 840 Watts.
    840 watts/15 Watts = 56 bulbs(7 amps)
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #5

    Aug 4, 2010, 06:39 AM
    How about just providing Ohm's Law and letting the poster do the math?
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