PH-9

I–V characteristics

Physics · Secondary 3 · Medium · I–V characteristics

A resistor has an I–V characteristic that is a straight line through the origin. When the potential difference across it is 6.0 V, the current is 0.75 A. Using the I–V graph, what is the resistance of the resistor?

$8.0\,\Omega$
$0.125\,\Omega$
$4.5\,\Omega$
$7.5\,\Omega$

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