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Ohm's Law
Ohm's Law
Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k of resistance?
590 mA
59 mA
27.2 mA
5.9 mA
590 mA
59 mA
27.2 mA
5.9 mA
Answer
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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?
214 mA
21.4 mA
2 mA
2.2 mA
214 mA
21.4 mA
2 mA
2.2 mA
Answer
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Ohm's Law
The formula to find I when the values of V and R are known is
I = R/V
I = V/R
V = IR
I = VR
I = R/V
I = V/R
V = IR
I = VR
Answer
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Ohm's Law
If 750 µA is flowing through 11 k of resistance, what is the voltage drop across the resistor?
14.6 V
82.5 V
8.25 V
146 V
14.6 V
82.5 V
8.25 V
146 V
Answer
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Ohm's Law
An electric heater draws 3.5 A from a 110 V source. The resistance of the heating element is approximately
31
3.1
38.5
385
31
3.1
38.5
385
Answer
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