Ohm's Law Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k of resistance? 27.2 mA 5.9 mA 59 mA 590 mA 27.2 mA 5.9 mA 59 mA 590 mA 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. 40 2 4 20 40 2 4 20 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate resistance of a rheostat if the voltage source is 18 V and the current is 220 mA? 820 82 8.2 k 8.2 820 82 8.2 k 8.2 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law When 12 V are applied across a 68 resistor, the current is 8.16 mA 816 mA 17.6 mA 176 mA 8.16 mA 816 mA 17.6 mA 176 mA 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 112 18 11.2 1.2 112 18 11.2 1.2 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much current is produced by a voltage of 18 kV across a 15 k resistance? 12 A 1.2 A 12 mA 120 mA 12 A 1.2 A 12 mA 120 mA ANSWER DOWNLOAD EXAMIANS APP
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