# Whats the average current does this rotating charge represent

1. Feb 25, 2009

### xswtxoj

1. The problem statement, all variables and given/known data

a small sphere carries a charge of 8.34nC in whirled in a circle at the end of an insulating string. The angular speed is 116 Pi rad/s. whats the average current does this rotating charge represent

2. Relevant equations

I= q/t
w= theta/t

3. The attempt at a solution
116 pi rad/sec * 1 rev/min

2. Feb 25, 2009

### LowlyPion

Re: Ch17-18

What is current?

What units are you asked to represent it in?

It might be useful to figure how many times the charge will pass a particular point a sec.

They give you that it revolves at 116π radians/sec so how many times a sec ?

3. Feb 25, 2009

### xswtxoj

Re: Ch17-18

Current is I (amps) where its charge(Q) / (t) times in secs. so 116/60?, is it 8.34x1e-9/ (116 pi/60)?

4. Feb 25, 2009

### LowlyPion

Re: Ch17-18

1. How many radians in a revolution?

2. What's with the 60, when they give you ω in radians/sec already?

5. Feb 25, 2009

Re: Ch17-18