Question

Typically, household appliances operate at 120 volts. What is the current flowing in the circuit of a microwave when the resistance of the microwave oven is 30 ohms

Answer 1

The current flowing in the circuit of a microwave with a resistance of 30 ohms at 120 volts is 4 amperes, as calculated using Ohm's law (Irms = Vrms / R).

Step-by-step explanation:

To calculate the current flowing in the circuit of a microwave with a resistance of 30 ohms when the voltage is 120 volts, we use Ohm's law, which states that current I can be found by dividing the voltage V by the resistance R. Specifically, Irms = Vrms / R. In this case, because the voltage is given as Vrms (120 volts, the amount typically found in household outlets), and the resistance of the microwave is 30 ohms, we can calculate the current as follows:

Irms = Vrms / R = 120 V / 30 Ω = 4 A.

Therefore, the current flowing through the microwave oven is 4 amperes (A).