Answer :
The current comes out to be 4 ampere which is passing through the 30 ohm heating coil of a coffee maker operating on a 120-volt circuit.
Ohm's law states that electric current is directly proportional to voltage and inversely proportional to resistance.
It is expressed as V = I × R.
Where, V= voltage, I= current, R= resistance
As, R= 30 ohm, V= 120volt, I=?
and V = I × R
so, I = V/R
therefore, I = 120/30 Ampere
I = 4 Ampere
Hence l, current (I) = 4 Ampere
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