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An electric toaster requires 1100 W at 110. V. What is the resistance, in Ohms, of the heating coil?
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Added Fri, 07 Aug '15
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Ohms law is E = I x R

watt = P for power
Amps = I for inductance
Volts = E for energy
Resistance = R for resistance

Thus P = E x I

1100 = 110 x I
10 = I (amps)

So using Ohm's law E = I x R

110 = 10 x R
11 = R

A little backwards but it's 11 ohms resistance
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Added Fri, 07 Aug '15
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