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 4 2 40 20 4 2 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 212 68 680 6.8 k 212 68 680 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much current is produced by a voltage of 18 kV across a 15 k resistance? 12 mA 12 A 1.2 A 120 mA 12 mA 12 A 1.2 A 120 mA 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? 230 97 9.7 23 230 97 9.7 23 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the voltage source for a circuit carrying 2 A of current through a 36 resistor? 7.2 V 1.8 V 18 V 72 V 7.2 V 1.8 V 18 V 72 V 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 50 V 8 V 80 V 500 V 50 V 8 V ANSWER DOWNLOAD EXAMIANS APP
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