Graph between V and I for non-ohmic devices:
Correct answer: B. Always not straight line
- A. Straight line
- B. Always not straight line
- C. Usually not straight-line
- D. Sometime straight line
Explanation
For non-ohmic devices, graph is not straight line.For instance.look at V-I or I-V graph of a filament or thermistor it is not linear.
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Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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