Log in
Physics
1
answer
0
watching
86
views

To receive AM radio, you want an RLC circuit that can be made to resonate at any frequency between 500 and 1650 kHz. This is accomplished with a fixed 1.00 (H inductor connected to a variable capacitor. What range of capacitance is needed?

 

Watch
1
answer
0
watching
86
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Priyanka
PriyankaLv10
6 Nov 2020

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Laboratory experiments with series RLC circuits require some care,as these circuits can produce large voltages at resonance. Supposeyou have a 1.00-H inductor (not difficult to obtain) and a varietyof resistors and capacitors. Design a series RLC circuit that willresonate at a frequency (not an angular frequency) of 60.0 Hz andwill produce at resonance a magnification of the voltage across thecapacitor or the inductor by a factor of 17.1 times the inputvoltage or the voltage across the resistor.

a) What is the capacitance required for this circuit?
b) And what is the resistance required for this circuit?

Problem: Consider a series RLC circuit. The applied voltage has amaximum value of 120 V and oscillates at a frequency of 81Hz.

Part a: assume the circuit contains a variable capacitor, an 820ohm resistor, and a 3.7 H inductor. Determine the value of thecapacitor such that the voltage across the capacitor is out ofphase with the applied voltage by 54 degree.

Part b: assume the circuit contains a variable inductor, an 820 ohmresistor, and a 1.5 microfarad capacitor. Determine the value ofthe inductance such that the voltage across the capacitor is out ofphase with the applied voltage by 48 degree, which V(max) leadingV(c).

Since they are kind of similar, I will just put what I thought Iwas supposed to do for part a:

using tan(theta) = (Xc - Xl)/R; I solved for the capacitance. Thisdidn't come out correctly, and I tried it many ways, so I amassuming this is the wrong formula. Can you help me please?

The following statements are related to an RLC circuit connected across an AC power source. Choose the words that make each statement true.

(i) The voltage across the [(a) capacitor; (b) inductor] leads the current by 90°.

(ii) The voltage across the [(c) capacitor; (d) resistor] is in phase with the current.

(iii) At resonance, the phase angle between the current and the voltage [(e) is 0; (f) depends on frequency f].

(iv) The maximum and rms voltages from the power source are related by [(g) ; (h) ].

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in