Electrical Engineering - RLC Circuits and Resonance - Discussion

Discussion Forum : RLC Circuits and Resonance - General Questions (Q.No. 7)
7.
A 6.8 k resistor, a 7 mH coil, and a 0.02 F capacitor are in parallel across a 17 kHz ac source. The coil's internal resistance, RW, is 30 . The equivalent parallel resistance, Rp(eq), is
1,878
18,780
18,750
626
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
34 comments Page 2 of 4.

Puja said:   9 years ago
@Mrakovic.

Can you tell me what is Q? And by using your formula I get an answer is 18660.192 but I have a confusion this answer is right or wrong.

Bharath said:   9 years ago
Please show how to make the conversion without calculator.

Vani.c said:   9 years ago
Anyone please explain this problem with proper equation.

Likhitha said:   9 years ago
Anyone please tell me simplest and understandable answer.

Stuti kushwaha said:   9 years ago
Answer is not getting please help me.

Saurabh said:   10 years ago
We could find answer by conventional way but is there any shortcut to find quick answer as conventional way is highly time taking.

Manoj patil said:   10 years ago
Please give me right solution because I got totally wrong answer.

Ajit Kumar said:   1 decade ago
1/(Z-30) = 1/6.8 + J*.017*0.02 + 1/(J17*7).

Now Z can be calculated in form of 1/z = x + j Y.

Rp = 1/x.

Swapnil said:   1 decade ago
Please provide some description.

Pawan mahe. said:   1 decade ago
Consider internal resistance of coil with inductive reactance.

Z (L) =jX (L) +R (L).

And add all components in parallel now.

It's complex but you will get answer.


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