Question

Which unit is equivalent to the coulomb?

• A. ampere - second
• B. joule per volt
• C. watt per ampere
• D. watt per volt

Answer 1

Answer: (A), (B)

ampere - second
joule per volt

We know that

$It=Q$

and

$E=VIt$

$⟹It=\frac{E}{V}$

$⟹Q=\frac{E}{V}$

$⟹$ Coulomb = $\frac{Joule}{Volt}$

Also as we know that

Coulomb is the unit charge(q)

Also charge = Current$\times$time= Ampere second

Hence, coulomb is equivalent to Ampere- second

hence, correct options are A and B