Question

S.I. unit of electric current is:

• A. ampere
• B. volt
• C. farad
• D. coulomb

Answer 1

Answer: (A)

• $\text{Electric current is defined as the rate of flow of charge}$
• $\text{Since the charge is measured in coulombs and time in seconds, the electric current unit is Coulomb/Sec ( C/s )}$
• $\text{Where, coulomb/sec is defined as Ampere}$

$\text{So the Ampere is the SI unit of the current.}$

Hence Option A