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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 mutualinductance 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 final values. Compare the expressions obtained for the total energy stored and obtain the desired result.
Discuss the requirement for automatic gain control in AM receiver and automatic frequency control in FM. How are these 'control' voltage formed and used?
Finance and Accounting in KPI Every business is completed to earn some profit and it is the underline concept. The main tasks are to manage the finances efficiently to meet th
Half-wave rectifier: A half-wave rectifier will just only give one peak per cycle and for this reason and other reasons is only employed in extremely small power supplies. A f
Connection of Shunt Capacitors - Across Individual Customers The most appropriate manner of improving PF of the distribution system and thereby reducing line losses is to link
Discuss the degeneracy of energy of energy states. Solve the Schrodinger’s equation for a free particle in three dimensional boxes and find Eigen values and Eigen function of free
high resistivity materials
Q. For the circuit shown in Figure, obtain: (a) z-and y-parameters; (b) Transfer function I 2 /I 1 when V 2 = 0.
Merits: 1. It is very simple to shift the operating point anywhere in the active region by just changing the base resistor (R B ). 2. A very small number of compon
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Q. What is Trans conductance? It is ratio of small change in drain current to the corresponding change in the gate-to-source voltage for a constant gate-to-source voltage .it i
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