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OHM'S LAW QUIZ

How much resistance is required to limit the current from a 12 V battery to 3.6 mA?

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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?

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How much resistance is needed to draw 17.6 mA from a 12 volt source?

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What is the voltage source for a circuit carrying 2 A of current through a 36 resistor?

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Four amperes of current are measured through a 24 resistor connected across a voltage source. How much voltage does the source produce?

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How much voltage is needed to produce 2.5 A of current through a 200 resistor?

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When 12 V are applied across a 68 resistor, the current is

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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?

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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

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An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately

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