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Electric current

Rearrange the equation Current = voltage/resistance to expressresistance in terms of current and voltage. Then solve thefollowing. A certain device in a 120-V circuithas a current ratingof 20 A. What is the resistance of the device (how many ohms)?
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Answer #1
Given that
Voltage(V) = 120V
Current(I) = 20A
We know Ohm's law is V = IR
R= V/I
=(120V) / (20A) = 6Ω
answered by: Hickey
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