What is the current in the 30-ohm heating coil of a coffee maker that operates on a 120-volt circuit?
Would be 120/30?
Your answer is correct. Be sure to use the units of amps as the current.
what is the current in the 30 ohm heating coil a coffee maker that operates on a 120 volt circuit
To calculate the current in the 30-ohm heating coil of the coffee maker, you would use Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R). So in this case, the formula would be:
I = V / R
Where:
I = Current in amperes (A)
V = Voltage in volts (V)
R = Resistance in ohms (Ω)
Plugging in the given values:
V = 120 volts
R = 30 ohms
I = 120 V / 30 Ω
I = 4 amperes (A)
Therefore, the current flowing through the 30-ohm heating coil of the coffee maker is 4 amperes.