Ohm's Law When 12 V are applied across a 68 resistor, the current is 176 mA 816 mA 8.16 mA 17.6 mA 176 mA 816 mA 8.16 mA 17.6 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law A current of 200 µA through a 6.8 k resistor produces a voltage drop of 340 V 34.4 V 1.36 V 13.6 V 340 V 34.4 V 1.36 V 13.6 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? 8.2 82 8.2 k 820 8.2 82 8.2 k 820 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. 20 4 40 2 20 4 40 2 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is needed to draw 17.6 mA from a 12 volt source? 212 68 6.8 k 680 212 68 6.8 k 680 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed? 18 V 9 V 900 mV 0 V 18 V 9 V 900 mV 0 V ANSWER DOWNLOAD EXAMIANS APP
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