COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 21, Problem 17QAP
To determine
To Define:
Impedance for an LRC circuit and give the units of impedance
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COLLEGE PHYSICS
Ch. 21 - Prob. 1QAPCh. 21 - Prob. 2QAPCh. 21 - Prob. 3QAPCh. 21 - Prob. 4QAPCh. 21 - Prob. 5QAPCh. 21 - Prob. 6QAPCh. 21 - Prob. 7QAPCh. 21 - Prob. 8QAPCh. 21 - Prob. 9QAPCh. 21 - Prob. 10QAP
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- In addition to phasor diagrams showing voltages such as in Figure 32.15, we can draw phasor diagrams with resistance and reactances. The resultant of adding the phasors is the impedance. Draw to scale a phasor diagram showing Z, XL, XC, and for an AC series circuit for which R = 300 , C = 11.0 F, L = 0.200 H, and f = 500/ Hz.arrow_forwardDescribe what effect the resistance of the connecting wires has on an oscillating LC circuit.arrow_forwardWhat is the impedance of an RLC series circuit at the resonant frequency?arrow_forward
- The capacitor in Figure 23.55(a) is designed to filter low—frequency signals, impeding their transmission between circuits. (a) What capacitance is needed to produce a 100 k reactance at a frequency of 120 Hz? (b) What would its reactance be at 1.00 MHz? (c) Discuss the implications of your answers to (a) and (b).arrow_forwardShown below are two circuits that act as crude high-pass filters. The input voltage to the circuits is vin, and the output voltage is vout. (a) Show that for the capacitor circuit, voutvin=11+1/2R2C2 and for the inductor circuit, voutvin=LR2+2L2 (b) Show that for high frequencies, voutvin , but for low frequencies, vout0 .arrow_forwardA 2.0-F capacitor is charged to a potential difference of 12.0 V and then connected across a 0.40-mH inductor. What is the current in the circuit when the potential difference across the capacitor is 6.0 V?arrow_forward
- An output impedance of an audio amplifier has an impedance of 500 and has a mismatch with a low-impedance 8- loudspeaker. You are asked to insert an appropriate transformer to match the impedances. What turns ratio will you use, and why? Use the simplified circuit shown below.arrow_forwardShow that the SI unit for capacitive reactance is the ohm. Show that the SI unit for inductive reactance is also the ohm.arrow_forwardPresbycusis is a hearing loss due to age that progressively affects higher frequencies. A hearing aid amplifier is designed to amplify all frequencies equally. To adjust its output for presbycusis, would you put a capacitor in series or parallel with the hearing aid's speaker? Explain.arrow_forward
- Certain heavy industrial equipment uses AC power that has a peak voltage of 679 V. What is the rms voltage?arrow_forwardThe power rating of a resistor used in ac circuits refers to the maximum average power dissipated in the resistor. How does this compare with the maximum instantaneous power dissipated in the resistor?arrow_forwardAn RLC circuit consists of a 150- resistor, a 21.0-F capacitor, and a 466-mH inductor connected in series with a 120-V, 60.0-Hz power supply. (a) What is the phase angle between the current and the applied voltage? (b) Which reaches its maximum earlier, the current or the voltage?arrow_forward
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