If the current flowing through a 50-ohm resistor is 0.44 amperes, what voltage would you measure across the resistor?

This question requires you to solve for voltage using Ohm's Law. The applicable formula is Voltage (E) equals Current (I) multiplied by Resistance (R), or E = I x R. Both values are already given in standard base units, so no conversion is necessary. Simply multiply the current of 0.44 amperes by the resistance of 50 ohms. The math works out to 50 x 0.44 = 22 volts. The incorrect options are all variations of this number with the decimal point in the wrong place, designed to catch simple arithmetic or mental math mistakes.