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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.
Q. A voice message with W f = 2π(3×10 3 ) rad/s and Wrms = 2π(1 × 10 3 ) rad/s is transmitted over an FM broadcast system with standard emphasis. and compare the improvements due
Q. Ac measurements with constant voltage amplitude reveal that the total core loss of a certain magnetic circuit is 10 W at f = 50 Hz, and 13 Wat f = 60 Hz. Find the total core los
Discuss MACRO assembler directive with example. MACRO: A sequence of instructions to that has a name is assigned is termed as macro. Macros and subroutines are the
Tariff Filing Asset-wise details for each business of licensee; Audited accounts and financial statements, including cash flows for the preceding years and monthly bal
Q. Find the frequency of oscillation, amplifier gain ? The transfer function is found to be where the equation is written as a Laplace transform (s=jw). Analysis of thi
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Explain the phenomenon of breakdown in dielectric materials. Breakdown in dielectric materials: This electric strength at breakdown is explained as the minimum electric stress
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Determine the change in IC from 25ºC to 175ºC for the transistor defined in this table for fixed-bias with RB = 240 k and = 100 due to the S(VBE) stability factor.
Explain the Johnson Counters? The Johnson counters are a variation of standard ring counters with the inverted output of the last stage fed back to the input of the first stage
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