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 2 40 4 20 2 40 4 ANSWER DOWNLOAD EXAMIANS APP
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 How much resistance is required to limit the current from a 12 V battery to 3.6 mA? 22 k 2.2 k 33 k 3.3 k 22 k 2.2 k 33 k 3.3 k 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 15.1 µA 660 mA 151 µA 66 mA 15.1 µA 660 mA 151 µA 66 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law Approximately how much current flows through a 3.3 M resistor across a 30 V source? 9000 A 9 A 900 A 90 A 9000 A 9 A 900 A 90 A 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 212 68 680 6.8 k 212 68 ANSWER DOWNLOAD EXAMIANS APP
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