In this worksheet, we will practice defining electrical current and converting between a current in amperes and the number of coulombs of charge delivered.

**Q1: **

For how long would a current of 0.15 A need to be sustained to deliver a charge of 12 C?

**Q2: **

After 30 s, the total charge that passes a specific point in a circuit is 12 C. What is the current?

**Q3: **

What is the equation which expresses the total charge delivered by a current in a period of time ?

- A
- B
- C
- D
- E

**Q4: **

A current of 0.2 A passes through a wire for a period of 60 s. Calculate the total charge delivered by the wire.

**Q5: **

Which of the following electrical currents would deliver the greatest charge?

- A 0.10 A for 35 s
- B 0.05 A for 60 s
- C 1.0 A for 1.0 s
- D 0.25 A for 15 s
- E 20 A for 0.15 s