Ohm's Law How much voltage is needed to produce 2.5 A of current through a 200 resistor? 80 V 50 V 8 V 500 V 80 V 50 V 8 V 500 V 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 The formula to find I when the values of V and R are known is I = V/R I = R/V V = IR I = VR I = V/R I = R/V V = IR I = VR 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? 2.2 k 3.3 k 22 k 33 k 2.2 k 3.3 k 22 k 33 k ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source? 230 9.7 23 97 230 9.7 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. 20 2 4 40 20 2 4 40 ANSWER DOWNLOAD EXAMIANS APP
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