Ohm's Law What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source? 9.7 230 23 97 9.7 230 23 97 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 4 40 20 2 4 40 20 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 1.2 18 11.2 112 1.2 18 11.2 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? 590 mA 27.2 mA 59 mA 5.9 mA 590 mA 27.2 mA 59 mA 5.9 mA 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? 33 k 22 k 3.3 k 2.2 k 33 k 22 k 3.3 k 2.2 k 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 385 31 3.1 38.5 385 31 3.1 38.5 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS