Ohm's Law The current through a flashlight bulb is 40 mA and the total battery voltage is 4.5 V. The resistance of the bulb is approximately 11.2 18 1.2 112 11.2 18 1.2 112 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 2 40 4 20 2 40 4 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 31 38.5 385 3.1 31 38.5 385 3.1 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much voltage is needed to produce 2.5 A of current through a 200 resistor? 50 V 500 V 80 V 8 V 50 V 500 V 80 V 8 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 When 12 V are applied across a 68 resistor, the current is 17.6 mA 8.16 mA 816 mA 176 mA 17.6 mA 8.16 mA 816 mA 176 mA ANSWER DOWNLOAD EXAMIANS APP
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