In the picture to the right is a plot of Voltage vs. Current for three resistors

Question

In the picture to the right is a plot of Voltage vs. Current for three resistors: 10 [], 33 [], and 100 [] resistors. (Please assume the 33 Ohm resistor goes through the origin.)
1. What is the Resistance measured by the data shown on the graph for the 33[Ohm] resistor.

2.Using the same picture, what is the Resistance measured by the data shown on the graph for the 100[Ohm] resistor.

3. I  have a resistor of 80 [Ohm] and apply a voltage across it of 8 [Volt]. What is the current through the resistor in milliAmp?

Explanation / Answer

V= iR

R= V/i

1) R1 =0.9/0.026 = 34.61 ohms

2) R2 = m slope =102 ohms

3) i = V/R =8/80 =0.1A =100 milli Amps

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