Ohm's Law is applicable only when temperature remains:
Correct answer: C. Constant
- A. Changing
- B. Absolute zero
- C. Constant
- D. None of these options is correct
Explanation
It is factual that for Ohm's law to be applicable, the temperature has to be constant. Increase in Temperature causes the resistance to increase. The increase in resistance disrupts the causation 'Voltage is directly propotional to Current' since increased resistance prevents the flow of current.
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About Current Electricity
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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