- #1

Rectifier

Gold Member

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**Hey!**

I have a question regarding a statement in my physics book. I dont see how

[tex] |H(f)|_{dB} = - 10log (1+( \frac{f}{f_B})^2) [/tex]

approaches this equation below for big values on f.

[tex] |H(f)|_{dB} = - 20log ( \frac{f}{f_B}) [/tex]

Could you please help me out?

*Thanks in advance.*

EDIT: I am sorry if this is posted to a wrong sub-forum.

EDIT: I am sorry if this is posted to a wrong sub-forum.

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