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 4 40 20 2 4 40 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source? 23 97 9.7 230 23 97 9.7 230 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? 2.2 k 3.3 k 22 k 33 k 2.2 k 3.3 k 22 k 33 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law When there is 12 mA of current through a 1.2 k resistor, the voltage across the resistor is 10 V 100 V 1.4 V 14.4 V 10 V 100 V 1.4 V 14.4 V ANSWER DOWNLOAD EXAMIANS APP
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 How much current is produced by a voltage of 18 kV across a 15 k resistance? 12 mA 12 A 120 mA 1.2 A 12 mA 12 A 120 mA 1.2 A ANSWER DOWNLOAD EXAMIANS APP
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