Ohm's Law What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source? 97 9.7 230 23 97 9.7 230 23 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 18 112 11.2 1.2 18 112 11.2 1.2 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law If 750 µA is flowing through 11 k of resistance, what is the voltage drop across the resistor? 82.5 V 14.6 V 8.25 V 146 V 82.5 V 14.6 V 8.25 V 146 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 33 k 2.2 k 22 k 3.3 k 33 k 2.2 k 22 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed? 9 V 18 V 0 V 900 mV 9 V 18 V 0 V 900 mV ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law How much voltage is needed to produce 2.5 A of current through a 200 resistor? 500 V 80 V 8 V 50 V 500 V 80 V 8 V 50 V ANSWER DOWNLOAD EXAMIANS APP