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Ohm's Law

Ohm's Law
How much resistance is needed to draw 17.6 mA from a 12 volt source?

6.8 k
212
68
680

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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?

146 V
8.25 V
82.5 V
14.6 V

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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?

8 V
32 V
3.2 V
320 V

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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?

21.4 mA
2 mA
2.2 mA
214 mA

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

80 V
500 V
8 V
50 V

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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
I = VR
V = IR

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