Question

What is the current in a circuit if the charge passing each point is 10 C in 2 s, 20 C in 40 s, 240 C in 2 minutes?

Answer 1

`I=(DeltaQ)/(Deltat)`, where:

• `I` = current (`A`)
• `DeltaQ` = change in charge (`C`)

• `Deltat` = change in time (`s`)

• `I=10/2=5A`

• `I=20/40=0.5A`

• `I=240/120=2A`