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. 4 40 2 20 4 40 2 20 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 660 mA 15.1 µA 66 mA 151 µA 660 mA 15.1 µA 66 mA 151 µA 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 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 If 750 µA is flowing through 11 k of resistance, what is the voltage drop across the resistor? 146 V 8.25 V 14.6 V 82.5 V 146 V 8.25 V 14.6 V 82.5 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is needed to draw 17.6 mA from a 12 volt source? 680 68 6.8 k 212 680 68 6.8 k 212 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS