frequency physics prob?

Question

The resistance of a resistor is 9.1 Ohms and the resistance of a coil is 4.6 Ohms
(Both of these values were measured with an ohmmeter.)
What is the resistance of the circuit when driven at its resonant frequency?
__________________Ohms.
(Write N/A if there is not enough information to answer.)
Use Three Sig figs.

PLEASE HELP ME AND EXPLAIN, I'M CONFUSED ABOUT THIS, THANKS

Answer 1

You have insufficient information in this question to properly answer it.

In order to say something is resonant, you need two components. L (inductance) and C (capacitance). R is not part of the resonance. You only mentioned L. You could have meant, parastic capacitance in the L is making it resonant, but you didn't clearly state so. By itself, pure inductance does not have any resonance behaviors.

Also, you should know, at resonance, the impedance of parallel L/C becomes infinate where as series L/C becomes zero. Which is it?

In addition (there's more), is resister and inductor parallel or serial?

The possible answers are either zero, 9.1 ohms or infinity.

I give you all 3 options and reasons behind it, just in case there is more to this question.

Answer 2

When alternating current is applied to a series L-C-R circuit [circuit containing inductance L ,capacitance C and resistance R in series ],then at certain frequency, the inductjve reactance is equal to capacitive reactance,the impedence Z is minimum and equal to R. the current admitted is maximum.The circuit is called RESONANT and frequency is called reonant frequency

The power factor is unity (1)

hence given circuit is not resonant as it does not contain capacitance C The circuit has no resonant frequency

N/A

Answer 3

Scalar quantaties are issues like money, mass, and so on. So yep, they may well be dimensionless!! 5. a, b, c could all be in metres and d in seconds. rather can't be stricken doing something. sorry i'm busy lol.

Answer 4

going by f = v/a and plugging in the numbers I'm taking a shot in the dark and saying 1.98 ohms. if you could let me know if I wind up being right let me know, and if I'm wrong please accept my apologies!

Answer 5

n/a