The resonant or tuner circuit of an AM radio is shown bellow.
Given that
L=1μH, what must be the range of C to have the resonant
frequency
adjustable from one end of the AM band to another?
The frequency range for AM broadcasting
is 540 to 1600 kHz. We consider the low
and high ends of the band. Since the
resonant circuit is a parallel type,
find:
a )what is the range of capacitor?
b) if you have Qu is 100 and the R is 50 ohm. then what is Bandwidth for the capacitor?
communication department ( communication circuit course )
Given problem has been solved with proper explanation and calculations. To understand this problem a basic knowledge of series and parallel resonance circuit is required. If you have any doubt, please comment.
The resonant or tuner circuit of an AM radio is shown bellow. Given that L=1μH, what...
An LC circuit in an AM tuner (in a car stereo) uses a coil with an inductance of 8.1 mH and a variable capacitor. If the natural frequency of the circuit is to be adjustable over the range 540 to 1,600 kHz (the AM broadcast band), what range of capacitance (in pF) is required? smaller value .107 X PF larger value 1.22 X PF
We would like to build an AM radio receiver using a series RLC
circuit working as a bandpass filter. We have decided to use a 240
μH inductor with an internal resistance of 12Ω, and a variable
capacitor whose capacitance varies between 40 to 360 pF. A radio
“tunes” into a certain frequency by adjusting its receiver circuit
so that it resonates at that frequency, and it only catches that
specific frequency.
1. Determine the range of channel frequencies that...
4. We want to design a tuner (actually a band pass filter) for an AM radio station whose frequency isf 700 kHz. The tuner must be able to detect the AM sidebands which are located at ±5 kHz (695 kHz and 705 kHz) from the central frequency. An easy way to achieve the above is to use a series RLC circuit and take VR for the output voltage. The resonant frequency of this circuit is that of the radio station....
a) An LC resonant circuit is used to tune an AM radio. The value of the inductor in the radio is 1mH. What is the required value of the capacitor to tune to 710 kHz? 4. 5. An RC circuit is required to have a time constant of 6 seconds. C-10μF. Find R.
Can you please show an image that shows what is happening with
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The minimum capacitance of a variable capacitor in a radio is 4.18 pF. (a) What is the inductance of a coil connected to this capacitor if the oscillation frequency of the L-C circuit is 1600 times 103 Hz, corresponding to one end of the AM radio broadcast band, when the capacitor is set to its minimum capacitance? (b) The frequency at the other end of the broadcast...
A series RLC circuit is used to tune to a specific radio frequency for FM radio station. Assume that the RLC tuner has a width of resonance as narrow as ±0.15MHz and a quality factor of 310. the value of the resistor, R = 2358 ohm. (i) Calculate the inductor, L and capacitor, C. (ii) Determine your resonant frequency, f0. (iii) What is the nearest FM radio station that can be tuned by your RLC circuit at your city. explain...
A Radio Tuning Circuit A radio can be tuned into a particular station frequency by adjusting the capacitance in an L-C circuit. Suppose that the minimum capacitance of a variable capacitor in a radio is 4.13 pF. What is the inductance L of a coil connected to this capacitor if the oscillation frequency of the L. cretis 166 MHL corresponding to one end of the AM radio broadcast and when the capacitor is set to its minimum capacitance? Express your...
A radio can be tuned into a particular station frequency by adjusting the capacitance in an L-C circuit. Suppose that the minimum capacitance of a variable capacitor in a radio is 4.14 pF . What is the inductance L of a coil connected to this capacitor if the oscillation frequency of the L-C circuit is 1.60 MHz , corresponding to one end of the AM radio broadcast band, when the capacitor is set to its minimum capacitance? The frequency at...
A radio can be tuned into a particular station frequency by adjusting the capacitance in an L-C circuit. Suppose that the minimum capacitance of a variable capacitor in a radio is 4.17 pF a.)What is the inductance L of a coil connected to this capacitor if the oscillation frequency of the L-C circuit is 1.70 MHz , corresponding to one end of the AM radio broadcast band, when the capacitor is set to its minimum capacitance? b.)The frequency at the...
A radio can be tuned into a particular station frequency byadjusting the capacitance in an L-C circuit. Suppose thatthe minimum capacitance of a variablecapacitor in a radio is4.14 .a) What is the inductance of a coil connected to this capacitor ifthe oscillation frequencyof the L-C circuit is 1.70 , corresponding to one end of the AM radio broadcast band,when the capacitor is set to itsminimum capacitance?b) The frequency at the other end of the broadcast band is0.538 . What is...