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Q. Consider a pair of coupled coils as shown in Figure of the text, with currents, voltages, and polarity dots as indicated. Show that the mutual inductance is L12 = L21 = M by following these steps:
(a) Starting at time t0 with i1(t0) = i2(t0) = 0, maintain i2 = 0 and increase i1 until, at time t1, i1(t1) = I1 and i2(t1) = 0. Determine the energy accumulated during this time. Now maintaining i1 = I1, increase i2 until at time t2, i2(t2) = I2. Find the corresponding energy accumulated and the total energy stored at time t2.
(b) Repeat the process in the reverse order, allowing the currents to reach their ?nal values. Compare the expressions obtained for the total energy stored and obtain the desired result.
Q. With a circuit diagram explain how a transistor in common-base configuration amplify signals. The common-base terminology is derived from the fact that the base is common t
Q. For the 4-bit D/A converter of Figure, calculate: (a) The maximum analog output voltage. (b) The minimum analog output voltage. (c) The smallest detectable analog outpu
Q. Show the boundary of a Word? The boundary of a Word is defined as either 16-bits or the size of the data bus for the processor, and a Double Word is Two Words. so, a Word an
Using the audiorecorder() function in MATLAB, make a recording of your voice. Use a sample rate of 8kHz, 16 bits per sample, and aim to record around 2 seconds worth. Quantize the
Control Strategies Equation shows that output voltage V0 can be controlled through α and this duty cycle α can be varied by various strategies which are as follows.
Current ratio The ratio is mainly used to give an idea of the company's ability to pay back its short-term liabilities with its short-term assets. The higher the current ratio
a single stage amplifier circuit
Semiconductor Equations The semiconductor equations that are relating these variables are shown below: Carrier density: n = n i exp (E FN - E i / KT) (1)
Q. Define waves and transmission lines? In basic circuit theory we neglect the effects of the finite time of transit of changes in current and voltage and the finite distances
Explain Noise Noise is unwanted signals which degrade the desired signal content and therefore the performance of the system. Noise might be produced either externally or inte
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