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Electronics and Communication Engineering - Networks Analysis and Synthesis - Discussion

Discussion Forum : Networks Analysis and Synthesis - Section 1 (Q.No. 34)
Networks Analysis and Synthesis
34.
The impedance of an RC series circuit is 12 Ω at f= 50 Hz. At f= 200 Hz, the impedance will be
more than 12
less than 3
more than 3 Ω but less than 12 Ω
more than 12 Ω but less than 24 Ω
Answer: Option
Explanation:

Z = R2 + XC2. When f is made four times, XC becomes one-fourth but R remains the same.

Discussion:
5 comments Page 1 of 1.
Selva said:   9 years ago
Data inadequate.
Shannu said:   8 years ago
Can anyone explain this?
ABD said:   8 years ago
Here, the formula is;

Xc=1/2(3.142)fc.
Bikash said:   5 years ago
It's More than 12 ohm.
GOGINENI PRADEEP said:   5 years ago
Why it is more than 3 and less than 12?
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