Electrical Engineering - RC Circuits - Discussion

Discussion :: RC Circuits - General Questions (Q.No.22)

22. 

The complex number 40 55° is equivalent to

[A]. 55 + j55
[B]. 40 + j40
[C]. 45.88 + j65.52
[D]. 22.94 + j32.76

Answer: Option D

Explanation:

No answer description available for this question.

Dilip Verma said: (Sep 7, 2013)  
z=root(a2+b2) where z=40 and Angle=a/b where angle=tan55 then by making equations we solve it.

Nihar said: (Sep 24, 2013)  
A<B = A(cosB+isinB).

So here,

40<55 = 40(cos55+isin55) = 22.94+i32.76.

Post your comments here:

Name *:

Email   : (optional)

» Your comments will be displayed only after manual approval.