SI unit of electric current is
Correct answer: A. Ampere
- A. Ampere
- B. Coulomb
- C. Volt
- D. Ohm
Explanation
The ampere (A) is the SI unit of electric current. It represents the rate of flow of electric charge past a point in a circuit. One ampere is equal to the flow of one coulomb of charge per second. It is named after the French physicist André-Marie Ampère, who made significant contributions to the field of electromagnetism.
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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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