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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.
Name the three modes used by the DMA processor to transfer data? The three modes are:- a) Signal transfer mode (cycling stealing mode) b) Block transfer mode c) Demand
Explain the Discrete Time Systems? A system operates on an input signal, x[n] and output the results, y[n]. For example, a digital filter (a system) can be represented by the f
Q. What do you mean by Number Systems? The Digital circuits are inherently binary in nature, but numerous types of representations of numerical data are in use. The represen
Explain keyboard interfacing to 8088 through 8279 . The 8279 is a programmable keyboard and display interfacing component which scans and encodes up to a 64-key keyboard and con
Control Signals There are two control signals and one special (ALE) in this category. All these signals are output signals. RD (Read signal ) it is an active low
Elements related to capacitance a. Electric field: Area that surrounds the electric charge or charges system where the enhancing and reducing of electric force exists.
Q. For a p-channel JFET in its active region, specify the polarities of voltages and the directions of conventional currents.
Electric circuits or networks are formed by interconnecting various devices, sources, and components. Although the effects of each element (such as heating effects, electric-?eld e
Discuss some features of Pentium series of microprocessors. The Pentium is a CISC microprocessor, 32-bit superscalar. The term superscalar is utilized for the processor that
Give the names of four alloys along with their composition, which are used for making heater and thermocouple elements. Constantan or Eureka {(55 to 60 percent) Cu, (45 to 40 p
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