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When plugged into a 120-v wall outlet, how much current is used by an electric blanket rated at 140 w?

When plugged into a 120-v wall outlet, how much current is used by an electric blanket rated at 140 w?
asked 16.1k views
5 votes
When plugged into a 120-v wall outlet, how much current is used by an electric blanket rated at 140 w?

asked
User Perimosh
by
8.0k points

1 Answer

2 votes
Use these equations here for this one. simply re-arrange to solve for the value you are missing:
I = current
E = volts
R = resistance
Power = watts

Equations
E = I x R
Power = I x E
Power = I
^2 x R
Power = E
^2 / R

Solving for I = 1.16Amps
answered
User Thijser
by
8.2k points
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