The deviation of the I-V graph from a straight line is due to:
Correct answer: B. Increase in temperature and increase in resistance
- A. Decrease in temperature and decrease in resistance
- B. Increase in temperature and increase in resistance
- C. Decrease in temperature and increase in resistance
- D. Increase in temperature and decrease in resistance
Explanation
At a higher value of current, sufficient heat is produced which raises the temperature of the resistor and causes an increase in resistance.
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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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