# Electronics and Communication Engineering - Signals and Systems - Discussion

Discussion Forum : Signals and Systems - Section 1 (Q.No. 5)

5.

In an ac circuit the fundamental component of current wave lags the corresponding voltage wave by 20°. The third harmonic component of current wave lags the corresponding voltage by an angle.

Answer: Option

Explanation:

For third harmonic θ = tan^{-1} = .

Discussion:

7 comments Page 1 of 1.
EngrAfridi said:
8 years ago

How can any solve it?

Chaitu said:
7 years ago

How to solve this?

DADO said:
7 years ago

tan(θ)=n* first harmonic.

θ = tan^-1(3 * wL/R).

θ = tan^-1(3 * wL/R).

Dhinesh kumar said:
7 years ago

How to get the WL/R?

NP NARESH said:
7 years ago

Explain briefly.

Ganesh said:
6 years ago

How to solve this one?

Saira narasimha reddy said:
4 years ago

Theta = tan inverse (XL/R)= 20°

When,

3rd hormonic theta = tan inverse (3XL/R) so,

Value of theta increased more than previous so,

More than angle 20°.

When,

3rd hormonic theta = tan inverse (3XL/R) so,

Value of theta increased more than previous so,

More than angle 20°.

(1)

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