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.

Souma said:   1 decade ago
I need some quickly make out method, someone please help.

Rafi said:   1 decade ago
Can any one provide solution in detail? Please.

Mike said:   1 decade ago
This answer doesn't make any sense. How is the equivalent parallel resistance larger than the one resistor that is known, 6800?

If in parallel, it should be at least lower than 6800.

Mouni said:   1 decade ago
I need some clarity about this question.

Parneet kaur said:   1 decade ago
Please explain it in detail. I am also getting wrong answer.

Hailemichael said:   1 decade ago
I am also getting wrong answer. Please explained briefly?

PRATIK said:   1 decade ago
Please give the detailed solution.

Hemanth said:   10 years ago
Actually the resistance of a parallel circuit will be less than that resistor which has less resistance value).

So here R = 6800 ohms.

Internal resistance of l = 30 ohms.

And Resistance of capacitor = Very high value.

So the total resistance required of the circuit would be less than 30 ohms.

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

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.


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