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Ohm's Law

Ohm's Law
When 12 V are applied across a 68 resistor, the current is

8.16 mA
17.6 mA
176 mA
816 mA

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Ohm's Law
The formula to find I when the values of V and R are known is

I = V/R
V = IR
I = R/V
I = VR

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

1.8 V
7.2 V
72 V
18 V

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

680
212
68
6.8 k

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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
80 V
50 V
8 V

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Ohm's Law
Approximately how much current flows through a 3.3 M resistor across a 30 V source?

900 A
90 A
9 A
9000 A

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