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 8.2 k 82 8.2 820 8.2 k 82 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 66 mA 15.1 µA 151 µA 660 mA 66 mA 15.1 µA 151 µA 660 mA 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 A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver? 2 mA 21.4 mA 2.2 mA 214 mA 2 mA 21.4 mA 2.2 mA 214 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law The current through a flashlight bulb is 40 mA and the total battery voltage is 4.5 V. The resistance of the bulb is approximately 112 1.2 11.2 18 112 1.2 11.2 18 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? 9 V 0 V 900 mV 18 V 9 V 0 V 900 mV 18 V ANSWER DOWNLOAD EXAMIANS APP
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