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Ohm's Law

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

816 mA
176 mA
8.16 mA
17.6 mA

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Ohm's Law
How much resistance is required to limit the current from a 12 V battery to 3.6 mA?

22 k
2.2 k
3.3 k
33 k

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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?

2.2 mA
2 mA
21.4 mA
214 mA

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

V = IR
I = R/V
I = V/R
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?

18 V
72 V
7.2 V
1.8 V

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Ohm's Law
Twelve volts are applied across a resistor. A current of 3 mA is measured. What is the value of the resistor?

4 k
4.4
4
400

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