Electrical Engineering - RC Circuits - Discussion

Discussion :: RC Circuits - General Questions (Q.No.13)

13. 

In a parallel RC circuit, there is 100 mA through the resistive branch and 100 mA through the capacitive branch. The total rms current is

[A]. 200 mA
[B]. 100 mA
[C]. 282 mA
[D]. 141 mA

Answer: Option D

Explanation:

No answer description available for this question.

Pradeep said: (Sep 17, 2011)  
sqrt(100^2 + 100^2)

Abhilash said: (Jan 27, 2012)  
Let,I1=100ma through resistive & I2=100 through capacitive.

Therefore,

Total I=i1+i2 = 200A

RMS value = im/sqrt2 = 200/sqrt2 = 141 mA

Utkarsh Srmscet said: (Aug 7, 2015)  
i1 = 100 mA, i2 = 100/_90 deg mA or 100j.

So adding it under root (square of 100 + square of 100) = 141.41 mA.

Bheemangoud Kachanur said: (Jan 16, 2016)  
Irms = 0.707 im.

= 0.707*200.

= 141.4.

Kumar said: (Mar 22, 2016)  
Irms = 0.707 im.

= 0.707*200.

= 141.4.

Babloo said: (May 1, 2016)  
Thanks for explaining the solution.

Rajesh said: (Nov 11, 2016)  
Is 100 mA R.M.S value or Max. value?

Gauri said: (Jul 22, 2018)  
Can someone tell me the difference between rms & Max value?

Dhiraj Kumar Sahu said: (Sep 23, 2019)  
Irms=Imax/sqrt(2), it is only true if the input current is sinusoidal.

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