Ohm's law

13 practice questionsElectric CircuitsStep-by-step solutions

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The SI unit of electrical resistance is the:

A.Volt

B.Ampere

C.Ohm

D.Watt

A $12\,\text{V}$ source drives a $4\,\Omega$ resistor. What current flows?

48\,\text{A}

3\,\text{A}

0.33\,\text{A}

8\,\text{A}

A 6 ohm resistor carries 2 A of current. What voltage is across it?

A.3 V

B.8 V

C.12 V

D.24 V

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