Ohm's Law If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is 220 k 2.2 k 220 22 k 220 k 2.2 k 220 22 k 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 How much resistance is needed to draw 17.6 mA from a 12 volt source? 212 6.8 k 68 680 212 6.8 k 68 680 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? 18 V 9 V 0 V 900 mV 18 V 9 V 0 V 900 mV 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 20 4 2 40 20 4 2 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 14.4 V 10 V 1.4 V 100 V 14.4 V 10 V 1.4 V 100 V ANSWER DOWNLOAD EXAMIANS APP
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