Ohm's Law A 120 V lamp-dimming circuit is controlled by a rheostat and protected from excessive current by a 3 A fuse. To what minimum resistance value can the rheostat be set without blowing the fuse? Assume a lamp resistance of 20 ohms. 40 20 2 4 40 20 2 4 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law A current of 200 µA through a 6.8 k resistor produces a voltage drop of 1.36 V 13.6 V 34.4 V 340 V 1.36 V 13.6 V 34.4 V 340 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the voltage source for a circuit carrying 2 A of current through a 36 resistor? 18 V 72 V 7.2 V 1.8 V 18 V 72 V 7.2 V 1.8 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source? 9.7 97 230 23 9.7 97 230 23 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much voltage is needed to produce 2.5 A of current through a 200 resistor? 80 V 500 V 8 V 50 V 80 V 500 V 8 V 50 V 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 151 µA 660 mA 66 mA 15.1 µA 151 µA 660 mA 66 mA 15.1 µA ANSWER DOWNLOAD EXAMIANS APP
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