Electrical Engineering - RC Circuits - Discussion

Discussion :: RC Circuits - General Questions (Q.No.12)

12. 

The complex number 6 + j6 is equivalent to

[A]. 645°
[B]. 3645°
[C]. 8.4845°
[D]. 8.4890°

Answer: Option C

Explanation:

No answer description available for this question.

Sadananda said: (Mar 13, 2012)  
x=a+jb

|x|=sqrt(squar(a)+squar(b))

angle(a)=tan-1(a/b)

Hanumantha said: (Jan 28, 2015)  
@Sadananda.

Its not tan-1(a/b) its tan-1(b/a).

Abhishek Mishra said: (Sep 26, 2015)  
Alpha = tan-1(b/a).

Its alpha = tan-1(6/6).

= tan-1(1) = 45.

Jansi said: (Jan 26, 2016)  
How does that 8.48 has come? Can anyone help me in answering this?

Malleswar Rao said: (Feb 3, 2016)  
Square root of (a^2+b^2) = Square root of 72 = 8.48.

tan-1 (b/a) = tan-1 (6/6) = 45.

Surya said: (Dec 28, 2016)  
Yeah, that's correct @Malleswar.

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