General Science • PhysicsEasy
What is the primary SI unit of electric current, which is defined by the magnetic force between two parallel conductors carrying current?
A. Volt
B. Ampere✓ Correct Answer
C. Coulomb
D. Ohm
💡 Solution & Explanation
The ampere is the fundamental SI unit of electric current, representing the flow of one coulomb of electric charge per second. Voltage measures electrical potential difference, coulomb quantifies electric charge, and ohm measures electrical resistance. Electric current is measured experimentally using an instrument known as an ammeter connected in series within a closed electrical circuit.
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