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. 2 4 20 40 2 4 20 40 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law A current of 200 µA through a 6.8 k resistor produces a voltage drop of 1.36 V 34.4 V 13.6 V 340 V 1.36 V 34.4 V 13.6 V 340 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? 3.3 k 2.2 k 33 k 22 k 3.3 k 2.2 k 33 k 22 k 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 900 A 90 A 9 A 9000 A 900 A 90 A 9 A ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law When 12 V are applied across a 68 resistor, the current is 176 mA 816 mA 17.6 mA 8.16 mA 176 mA 816 mA 17.6 mA 8.16 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate filament resistance of a light bulb if it operates from a 110 V source and 0.6 A of current is flowing? 66 6.6 183 18.3 66 6.6 183 18.3 ANSWER DOWNLOAD EXAMIANS APP
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