Ohm's Law Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor? 4.4 4 k 4 400 4.4 4 k 4 400 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed? 900 mV 0 V 9 V 18 V 900 mV 0 V 9 V 18 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is 220 k 220 2.2 k 22 k 220 k 220 2.2 k 22 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is required to limit the current from a 12 V battery to 3.6 mA? 22 k 2.2 k 3.3 k 33 k 22 k 2.2 k 3.3 k 33 k 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? 8.2 820 82 8.2 k 8.2 820 82 8.2 k 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 385 31 3.1 38.5 385 31 3.1 38.5 ANSWER DOWNLOAD EXAMIANS APP
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