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 4 of 4.

Swati arora said:   1 decade ago
I'm not getting the right answer.

My answer is 292.6 - 1173j after adding all components in parallel and taking w=106.8k.

Should I take w=17khz ?

Please help me out. It's so much time taking.

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.

Swapnil said:   1 decade ago
Please provide some description.

Shrutali said:   1 decade ago
I'm not getting the answer. Please help me out.


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