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 When 12 V are applied across a 68 resistor, the current is 176 mA 8.16 mA 17.6 mA 816 mA 176 mA 8.16 mA 17.6 mA 816 mA 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? 8 V 96 V 9.6 V 960 V 8 V 96 V 9.6 V 960 V 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 100 V 1.4 V 14.4 V 10 V 100 V 1.4 V 14.4 V 10 V ANSWER DOWNLOAD EXAMIANS APP
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 1.2 18 11.2 112 1.2 18 11.2 112 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k of resistance? 5.9 mA 59 mA 27.2 mA 590 mA 5.9 mA 59 mA 27.2 mA 590 mA ANSWER DOWNLOAD EXAMIANS APP
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