Ohm's Law Four amperes of current are measured through a 24 resistor connected across a voltage source. How much voltage does the source produce? 9.6 V 960 V 8 V 96 V 9.6 V 960 V 8 V 96 V 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? 820 8.2 k 8.2 82 820 8.2 k 8.2 82 ANSWER DOWNLOAD EXAMIANS APP
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 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 When there is 12 mA of current through a 1.2 k resistor, the voltage across the resistor is 100 V 10 V 1.4 V 14.4 V 100 V 10 V 1.4 V 14.4 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 500 V 80 V 8 V 50 V 500 V 80 V 8 V ANSWER DOWNLOAD EXAMIANS APP