Thursday

November 27, 2014

November 27, 2014

Posted by **Sandhya** on Saturday, May 23, 2009 at 6:04am.

Suppose the battery is replaced by 12 V ac with a frequency of 60 Hz.Calculate the Irms in the circuit

- Physics -
**bobpursley**, Saturday, May 23, 2009 at 7:35amIf the resistor is 9v, the capacitor is 3 volts.

Vc=q/C=12/(5E6*6E-6)*e^-t/rc

3*30/12=e^-t/30

take the ln of each side, solve for t.

check my typing, my eyes are blurry this am.

Now for the ac part, Z=5E6+1/(2PI60)*6E-6 figure that, it is nearly all resistive.

Then I=12/Z

I can check your work on this.

**Answer this Question**

**Related Questions**

Physics - Took a leaf out of Eileen's book for the picture corresponding to the ...

Physics - Could someone please tell me what equations i am suppose to use to ...

Physics - A 80.0 Hz generator with an rms voltage of 150 V is connected in ...

physics - A 2.0 micro Farad capacitor in a circuit in series with a resistance ...

Physics - A)Two identical resistors are connected in parallel across a 30-V ...

Physics - A)Two identical resistors are connected in parallel across a 30-V ...

Physics!! Help!!!!! - The time dependence of voltage across a discharging ...

physics - 4.8mF capacitor in series with 500 ohm resistor is connected, via a ...

Physics - A 2.0 micro farad capacitor in a circuit in series with a resistor of...

Physics - A 1.0 KΩ resistor is connected in series with a 10.0 mH inductor...