Draw a circuit that contains a 5 − Ω resistor, a 10-V voltage source, and a voltage-controlled voltage source having a gain constant of 0.5. Assume that the voltage across the resistor is the control voltage for the controlled source. Place all three elements in series.
Draw a circuit that contains a 5 − Ω resistor, a 10-V voltage source, and a voltage-controlled voltage source having a gain constant of 0.5. Assume that the voltage across the resistor is the control voltage for the controlled source. Place all three elements in series.
Solution Summary: The author explains that the voltage value of a voltage-controlled voltage source is given by V_c.
Draw a circuit that contains a
5
−
Ω
resistor, a 10-V voltage source, and a voltage-controlled voltage source having a gain constant of 0.5. Assume that the voltage across the resistor is the control voltage for the controlled source. Place all three elements in series.
1. (20 pts) Plot the pulse and the FFT for a pulse with the following properties at x=0 and x=10
cm.
f=2 MHz
m=3
Ncyc=2, 6, 20
po 1 MPa (source pressure)
x=10 cm (propagates in a Newtonian fluid for 10 cm as a plane wave-not a sound beam)
a=0.5 dB/(MHz cm)
Consider 3 types of waves: sine, square, and sawtooth. (square and sawtooth only for grad
students)
Observe your plots and draw some conclusions. Discuss any possible issues you encounter.
2. (20 pts) We have the following 3 ultrasonic transducers:
a. Focused 1 MHz, 2.54 cm diameter, 5.08 cm focus
b. Focused 3 MHz, 2.54 cm diameter, 5.08 cm focus
c. Unfocused 0.1 MHz, 2.54 cm diameter
The transducers are operating in water (c=1486 m/s).
I. Plot the axial field for all transducers
II. Plot the focal transverse field for the focused transducers and the transverse field at the
Rayleigh distance (R_0) and at 2R_0 for the unfocused.
III. Assume source pressure of 0.1 MPa, and find the acoustic pressure in MPa at the location
(r=0, z=4.5…
Find the Q-points for the diodes in the circuit. Assume ideal diodes, and startwith the assumption that D is OFF, and D2 is ON for both circuits.
please see the following image to answer questions thanks
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