一个有趣的小车 (amdhc)

Race #724

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Official speed 57.78 wpm (88.27 seconds elapsed during race)
Race Start October 30, 2017 7:52:19am UTC
Race Finish October 30, 2017 7:53:47am UTC
Outcome No win (3 of 4)
Accuracy 95.0%
Points 67.41
Text #3620034 (Length: 425 characters)

Resistance is the measurement of the ability of electrons to move through a material. A copper wire with a large diameter has lower resistance to the flow of electrons than a copper wire with a small diameter. You need to understand resistance because almost every electronics project you do involves a resistor. Resistors have controlled amounts of resistance, which allows you to control the flow of electrons in a circuit.