Electrical Engineering - RC Circuits - Discussion

Discussion :: RC Circuits - General Questions (Q.No.1)


In the complex plane, the number 14 – j5 is located in the

[A]. first quadrant
[B]. second quadrant
[C]. third quadrant
[D]. fourth quadrant

Answer: Option D


No answer description available for this question.

Neeraj Patel said: (Dec 11, 2010)  
Because the fourth quadrant is positive. The angle is 19.65 this is positive.

Chaitanya said: (Dec 25, 2010)  
I think in 4th quadrant you will get -19.65.

Rupal said: (Jan 13, 2011)  
Option D is wright.because r is on x-axis and xl on y-axis.r is (+)and xl is (-).so its possible on 4 th qud.

Naeem said: (Mar 30, 2012)  
If we draw the coordinate as taking real value on x-axis and imaginary value on y-axis then the (-j5) will be in -y-axis and real value on +x-axis. Then it is in fourth quadrant.

Hitesh said: (Aug 18, 2012)  
Here real value in X axis and imaginari value in Y axis so(+,-) ans is D

Srikanth said: (Aug 28, 2012)  
This is in the form of x+jy so x=14 and y=-5 so this is in the fourth quadrant....

Sidhu said: (Dec 11, 2012)  
1 quad= +ve real +ve img
2 quad= -ve real +ve img
3 quad= -ve real -ve img
4 quad= +ve real -ve img

This is the reason.

Dhwani said: (Sep 20, 2013)  
x axes contains real parts and y axes imaginary.

So if we write X+iY then 'X' is real part and 'Y' is imaginary.

Similarly the given equation 14-j5 , 14 will be Real part situated on +x axes & -j5 on the negative y axes(4th quadrant).

Milan Patel said: (Feb 18, 2014)  
In quadrant co-ordinate is write in form (cos@, sin@). So it also write as cos@+jsin@.

So on that the answer will be (cos@, -sin@) so it in fourth quadrant.

Vamshi said: (Jul 29, 2015)  
Do we need to convert to polar for answer.

Raj Kumar said: (Sep 21, 2015)  
Can you explain please?

Kiran said: (Feb 3, 2016)  
I don't know anything. Please anyone explain me?

Vikas said: (Aug 31, 2016)  
Nice @Sidhu.

Fiords said: (Nov 24, 2016)  
Thanks @Sidhu.

Sameeksh said: (Sep 14, 2018)  
The tan inverse(-5/14)=-ve answer.

That implies it's in 4th quadrant or 2nd quadrant. But the real coefficient is +ve. So obviously it's in 4th quadrant.

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