What is the resistance of a circuit in which a current of 3 amperes flows when connected to 90 volts?

To find the resistance in this circuit, you must apply Ohm's Law in the form R = E / I, where E is the voltage and I is the current. The question provides a voltage (E) of 90 volts and a current (I) of 3 amperes. By plugging these numbers into the formula, you get R = 90 / 3, which calculates to 30 ohms. The distractor of 270 ohms is the result of incorrectly multiplying the values, while 93 ohms comes from mistakenly adding them together. Always remember to divide voltage by current to find resistance.