# Capacitor question

1. Nov 24, 2007

### indigojoker

Would I blow a fuse if I put a large capacitor across the outlet of my house?

2. Nov 25, 2007

### Shooting Star

We are waiting with baited breath!

Presumably, you have AC. What does the C do in a circuit?

3. Nov 25, 2007

### indigojoker

charges up right? but what happens when it's in AC?

4. Nov 25, 2007

### rock.freak667

What does AC mean..alternating current....that means the current changes direction with time which means that..the capacitor should charge in one direction and discharge in the other

5. Nov 26, 2007

### Shooting Star

The capacitor has a reactance Rc to AC, which is pretty much similar to resistance in DC.

Rc = I/wC, where w = 2(pi)f. In analogy with DC, V = I*Rc => I = 2(pi)VfC, where V and I are actually the RMS values. V and f are set by the power companies, and you can't do anything about them.

By making C high, you can increase I. To blow a fuse, you need around 5 A of current. Now do the math for what C you need.

SO, when are you planning to do it?