Ohm's Law What is the approximate resistance of a rheostat if the voltage source is 18 V and the current is 220 mA? 8.2 820 8.2 k 82 8.2 820 8.2 k 82 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is needed to draw 17.6 mA from a 12 volt source? 680 6.8 k 68 212 680 6.8 k 68 212 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately 3.1 31 385 38.5 3.1 31 385 38.5 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. 4 2 40 20 4 2 40 20 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is required to limit the current from a 12 V battery to 3.6 mA? 22 k 3.3 k 33 k 2.2 k 22 k 3.3 k 33 k 2.2 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law When 12 V are applied across a 68 resistor, the current is 8.16 mA 816 mA 17.6 mA 176 mA 8.16 mA 816 mA 17.6 mA 176 mA ANSWER DOWNLOAD EXAMIANS APP
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