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Aloudspeaker is a common electrochemical transducer in which vibration is caused by changes in the input current to a coil which, in turn, is coupled to a magnetic structure that can produce time- varying forces on the loudspeaker diaphragm. Figure (a) shows the schematic diagram of a loudspeaker, Figure (b) is a simplified model, Figure (c) is a free-body diagram of the forces acting on the loudspeaker diaphragm, and Figure (d) is the electrical model.
The force exerted on the coil is also exerted on the mass of the loudspeaker diaphragm.
Develop the equation of motion for the electrical and mechanical sides of the device and determine the frequency response U(jω)/V(jω) of the loudspeaker using phase analysis, and neglecting the coil inductance.
Consider the circuit shown in Figure (a) in which the switch S has been in position 1 for a long time. Let the switch be changed instantaneously to position 2 at t = 0. Obtain v(t)
Comparison of Analog-Modulation Systems The comparison of analog modulation systems (conventional AM, DSB SC, SSB SC, VSB, FM, and PM) can be based on three practical criteria:
Fourier Deconstruction Find the Fourier series as far as the third harmonic, to represent the periodic function y, given by the values in the following table.
What Is the Concept of Dual beam CRO ?
Q. An n-channel JFET with A = 300 V, P = 2 V, and I DSS = 10 mA is to be operated in the active mode. Determine i D when v DS = 10 V and v GS =-0.5V.
Discuss the layout configuration of FMS with neat and clean diagram? Write the disadvantages and advantages of FMS? Write the short note on following: a) Applications of FMS
'Electrical drives' is a general term that is commonly used to describe both DC and AC excited motors that provide continuous rotary motion, whilst 'electrical actuators' provide l
Q. Consider the synchronous counter shown in Figure of the text. (a) Draw its timing diagram. (b) Show the implementation of the same synchronous counter using D flip-flops.
Give the applications of PVC. PVC- It is acquired from polymerisation of hydrogen chloride and acetylene in the presence of a catalyst as peroxides at about 50 0 C. It is e
Q. When the two-wattmeter method for measuring three-phase power is used on a certain balanced load, readings of 1200W and 400W are obtained (without any reversals). Determine the
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