MCQ
$1$ Coulomb $=$ ________ Electro Static Unit.
  • $3 \times 10^9$
  • B
    $3 \times 10^8$
  • C
    $1.602 \times 10^{-19}$
  • D
    $2 \times 10^9$

Answer

Correct option: A.
$3 \times 10^9$
a. $3 \times 10^9$
Explanation:
$1$ Coulomb means $3 \times 10^9$ Electro Static Unit of charge. Coulomb and $ESU$ are two different units of charge and their conversion formula is necessary. Coulomb is the unit of charge in the SI system and esu is the unit of charge in the $CGS$ system.

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