Calculating Current With Capacitor

[licklecee]

Homework Statement

c) Calculate the current flowing when a 4 uF capacitor is connected across 240V 50 Hz supply ?

Homework Equations

XC = 1/(2πfC)

The Attempt at a Solution

XC = 1/(2πfC)
XC = 1/(2π 50*0.000004)
XC = 1/(2π* 0.0002)
XC = 1/(6.28* 0.0002)
XC = 1/ 0.001256
XC = 0.001256

I'm not sure if this is correct. I would appreciate it if anyone could help me out. Thanks in advance !

 

[Redbelly98]

Homework Statement

c) Calculate the current flowing when a 4 uF capacitor is connected across 240V 50 Hz supply ?

Homework Equations

XC = 1/(2πfC)

The Attempt at a Solution

XC = 1/(2πfC)
XC = 1/(2π 50*0.000004)
XC = 1/(2π* 0.0002)
XC = 1/(6.28* 0.0002)
XC = 1/ 0.001256

Good so far.

XC = 0.001256

Nope. Do you see the error?

XC = 1/0.001256 = ______ ?​

Once you have the reactance XC, you still need to find the current as asked for.

 

[licklecee]

Ahh okay thank you !,

So Xc = 796.178

Now i know the reactance how i can get the current ? i haven't been able to find a formulae for it.

Thank you in advance !

 

[Redbelly98]

Here is a hint: the units of XC are Volts/Amps.