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Ohm's Law

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

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

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Ohm's Law
A resistance of 3.3 M is connected across a 500 V source. The resulting current is approximately

660 mA
15.1 µA
66 mA
151 µA

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

72 V
1.8 V
7.2 V
18 V

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Ohm's Law
How much current is produced by a voltage of 18 kV across a 15 k resistance?

1.2 A
12 A
120 mA
12 mA

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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
214 mA
2.2 mA
2 mA

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

8 V
960 V
9.6 V
96 V

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