Ohm's Law An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately 385 3.1 31 38.5 385 3.1 31 38.5 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor? 4 k 400 4.4 4 4 k 400 4.4 4 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is 220 k 220 2.2 k 22 k 220 k 220 2.2 k 22 k 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. 2 20 40 4 2 20 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? 96 V 9.6 V 8 V 960 V 96 V 9.6 V 8 V 960 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much resistance is needed to draw 17.6 mA from a 12 volt source? 6.8 k 212 68 680 6.8 k 212 68 680 ANSWER DOWNLOAD EXAMIANS APP
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