Question

The quantity which has the unit ampere-second is

• A. electric current
• B. electric potential
• C. electric charge
• D. electromotive force

Answer 1

The Correct Option is C

The unit of electric charge is ampere-second (A·s), which is derived from the definition of current. Electric charge is the product of current and time, where: $$\text{Electric Charge (Q)} = \text{Current (I)} \times \text{Time (t)}.$$ Therefore, the unit of electric charge is ampere-second (A·s). This makes option (C) the correct answer. The other options correspond to:
Electric current, which has the unit ampere (A).
Electric potential, which has the unit volt (V).
Electromotive force, which also has the unit volt (V).

The correct option is (C): electric charge