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AP Physics 2
11.5 Compound Direct Current (DC) Circuits
11.3 Resistance, Resistivity, and Ohm’s Law
IntermediateMCQGraphicalMathematical20.3k
Current I_D versus potential difference V for the non-ohmic element.
Current I_D versus potential difference V for the non-ohmic element.
A non-ohmic circuit element is connected in parallel with an ohmic resistor of resistance \(R = 30\text{ }\Omega\) across an adjustable DC power supply. The graph shows the current \(I_D\) through the non-ohmic element as a function of the potential difference \(V\) across it. The power supply is set to maintain a potential difference of \(6.0\text{ V}\) across the parallel combination. What is the equivalent resistance of the parallel combination at this operating voltage?

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