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? 0 V 9 V 18 V 900 mV 0 V 9 V 18 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 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? 21.4 mA 2.2 mA 214 mA 2 mA 21.4 mA 2.2 mA 214 mA 2 mA 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 38.5 31 385 3.1 38.5 31 385 3.1 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? 27.2 mA 59 mA 5.9 mA 590 mA 27.2 mA 59 mA 5.9 mA 590 mA ANSWER DOWNLOAD EXAMIANS APP
Ohm's Law A resistance of 3.3 M is connected across a 500 V source. The resulting current is approximately 151 µA 66 mA 660 mA 15.1 µA 151 µA 66 mA 660 mA 15.1 µA ANSWER DOWNLOAD EXAMIANS APP
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