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AP Physics C: E&M
11.3 Resistance, Resistivity, and Ohm’s Law
BeginnerMCQGraphicalMathematical19.6k
A two-dimensional Cartesian graph plotting current I in amperes on the vertical axis against potential difference V in volts on the horizontal axis. The horizontal axis ranges from 0 to 8 V with major grid lines and labels every 2 V (0, 2, 4, 6, 8). The vertical axis ranges from 0 to 4 A with major grid lines and labels every 1 A (0, 1, 2, 3, 4). A smooth, continuous curve starts at the origin (0,0) and curves upward to the right, passing through (2.0, 0.5), (4.0, 1.2), (6.0, 2.0), and (8.0, 3.0). A filled dot is prominently marked on the curve at the coordinates (6.0 V, 2.0 A), with dashed horizontal and vertical projection lines extending from this dot to 2.0 A on the vertical axis and 6.0 V on the horizontal axis. No other lines, labels, or text appear.
Current versus potential difference for a thermistor.
An experiment is conducted to measure the current \(I\) through a non-ohmic thermistor as a function of the potential difference \(V\) applied across it. The resulting \(I\text{–}V\) graph is shown. What is the operating resistance of the thermistor when the applied potential difference is \(6.0\text{ V}\)?

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