(II) Capacitors made from piezoelectric materials are commonly used as sound transducers (“speakers”). They often require a large operating voltage. One method for providing the required voltage is to include the speaker as part of an LRC circuit as shown in Fig. 30-29, where the speaker is modeled electrically as the capacitance C = 1.0 nF. Take R = 35 Ω and L = 55 mH, ( a ) What is the resonant frequency f 0 for this circuit? ( b ) If the voltage source has peak amplitude V 0 = 2.0 V at frequency f = f 0 , find the peak voltage V C 0 across the speaker (i.e., the capacitor C ), ( c ) Determine the ratio V C 0 / V 0 . FIGURE 30–29 Problem 66.
(II) Capacitors made from piezoelectric materials are commonly used as sound transducers (“speakers”). They often require a large operating voltage. One method for providing the required voltage is to include the speaker as part of an LRC circuit as shown in Fig. 30-29, where the speaker is modeled electrically as the capacitance C = 1.0 nF. Take R = 35 Ω and L = 55 mH, ( a ) What is the resonant frequency f 0 for this circuit? ( b ) If the voltage source has peak amplitude V 0 = 2.0 V at frequency f = f 0 , find the peak voltage V C 0 across the speaker (i.e., the capacitor C ), ( c ) Determine the ratio V C 0 / V 0 . FIGURE 30–29 Problem 66.
(II) Capacitors made from piezoelectric materials are commonly used as sound transducers (“speakers”). They often require a large operating voltage. One method for providing the required voltage is to include the speaker as part of an LRC circuit as shown in Fig. 30-29, where the speaker is modeled electrically as the capacitance C = 1.0 nF. Take R = 35 Ω and L = 55 mH, (a) What is the resonant frequency f0 for this circuit? (b) If the voltage source has peak amplitude V0 = 2.0 V at frequency f = f0, find the peak voltage VC0 across the speaker (i.e., the capacitor C), (c) Determine the ratio VC0/V0.
80 In Fig. 27-73, R1 = 5.00 0, R2 =
10.0 0, R3= 15.0 n, C= 5.00 µF,
|C = 10.0 µF, and the ideal battery
R.
%3D
has emf & = 20.0 V.Assuming that the
circuit is in the steady state, what is the
total energy stored in the two
R1
C2
capacitors?
(II) An electric circuit was accidentally constructed usinga 7.0µ F capacitor instead of the required 16 µ F value.Without removing the 7.0µ F capacitor, what can a technician add to correct this circuit?
HW 3 (page 1 of 16) - Gc
Imssb1.mutah.edujo mod/quiz/attempt.php?attempt=100417&c
For the following circuit in the figure below consider the direction of the current given. Determine ɛ (in units bf V) when I = 0.50 A and R =
24.1 Q.
R
2R
2R
Select one:
OA. 60.2
OB. 12.1
OC. 16.1
OD. 72.3
OE. 48.2
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4) E
5/1
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