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 900 mV 0 V 18 V 9 V 900 mV 0 V 18 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much voltage is needed to produce 2.5 A of current through a 200 resistor? 50 V 8 V 80 V 500 V 50 V 8 V 80 V 500 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is needed to draw 17.6 mA from a 12 volt source? 6.8 k 680 212 68 6.8 k 680 212 68 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 k 82 820 8.2 8.2 k 82 820 8.2 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 214 mA 21.4 mA 2.2 mA 2 mA 214 mA 21.4 mA 2.2 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate filament resistance of a light bulb if it operates from a 110 V source and 0.6 A of current is flowing? 66 18.3 183 6.6 66 18.3 183 6.6 ANSWER DOWNLOAD EXAMIANS APP
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