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CrazyAzn89
Lv 5
CrazyAzn89 asked in Science & MathematicsPhysics · 10 years ago

Need help on a physics current problem?

If a conductor with a current of 200 mA passing through it converts 40 J of electrical energy into heat in 30 s, what is the potential drop across the conductor?

Update:

Wait what that's it? o.O I've been over thinking this problem for 30 minutes......Thanks billrussell42.

1 Answer

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  • billrussell42
    Lv 7
    10 years ago
    Favourite answer

    Power = 40J/30s = 1.33 watts

    Power = E*I

    1.33 = E*0.2

    E = 6.67 volts

    .

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