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Ohm's Law
How much resistance is needed to draw 17.6 mA from a 12 volt source?
68
6.8 k
680
212
68
6.8 k
680
212
Answer
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Related Question
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
112
18
11.2
1.2
112
18
11.2
Answer
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Ohm's Law
What is the voltage source for a circuit carrying 2 A of current through a 36 resistor?
7.2 V
1.8 V
72 V
18 V
7.2 V
1.8 V
72 V
18 V
Answer
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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?
9 V
18 V
0 V
900 mV
9 V
18 V
0 V
900 mV
Answer
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Ohm's Law
How much voltage is needed to produce 2.5 A of current through a 200 resistor?
500 V
8 V
80 V
50 V
500 V
8 V
80 V
50 V
Answer
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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
22 k
220
220 k
2.2 k
22 k
220
Answer
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