Ohm's Law Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor? 4 k 4 400 4.4 4 k 4 400 4.4 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law The formula to find I when the values of V and R are known is I = VR I = V/R I = R/V V = IR I = VR I = V/R I = R/V V = IR ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate resistance of a rheostat if the voltage source is 18 V and the current is 220 mA? 8.2 82 820 8.2 k 8.2 82 820 8.2 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is needed to draw 17.6 mA from a 12 volt source? 212 68 680 6.8 k 212 68 680 6.8 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law A resistance of 3.3 M is connected across a 500 V source. The resulting current is approximately 15.1 µA 151 µA 66 mA 660 mA 15.1 µA 151 µA 66 mA 660 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately 31 385 3.1 38.5 31 385 3.1 38.5 ANSWER DOWNLOAD EXAMIANS APP
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