Ohm's Law If you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be? 320 V 8 V 32 V 3.2 V 320 V 8 V 32 V 3.2 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law The formula to find I when the values of V and R are known is V = IR I = V/R I = VR I = R/V V = IR I = V/R I = VR I = R/V 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 4 20 2 40 4 20 2 ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver? 2.2 mA 21.4 mA 2 mA 214 mA 2.2 mA 21.4 mA 2 mA 214 mA 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? 900 mV 9 V 18 V 0 V 900 mV 9 V 18 V 0 V ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law Approximately how much current flows through a 3.3 M resistor across a 30 V source? 90 A 900 A 9 A 9000 A 90 A 900 A 9 A 9000 A ANSWER DOWNLOAD EXAMIANS APP
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