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Physics

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what is the required resistance of an immersion heater that will increase the temperature of 1.50 kg of water from 10 degrees C to 50 degrees C in 10 minutes while operating 120 V?

  • Physics - ,

    heat required=1.5kg*cwater*(50-10) joules

    power required= heat/time=heat/600sec

    v^2/r= power

    resistance=120^2*600/(1.5kj(cwater)40) ohms

    check that.

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