Ohm's law is applicable to:
Correct answer: C. Resistors
- A. Currents
- B. Semi-conductors
- C. Resistors
- D. Batteries
Explanation
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage V applied to it i.e. V = IR. This law is only applicable to conductors and resistors and is inapplicable to insulators or semiconductors.
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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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