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Q. Consider the magnetic circuit shown in Figure. Assume the relative permeability of the magnetic material to be 1000 and the cross-sectional area to be the same throughout. Determine the current needed in the coil to produce a flux density of 1 T in the center limb, if the excitation coil has 500 turns.
how does this circuit work and what are th electrical components in it do?
Q. Explain workinf of colpitts oscillator? When the collector supply voltage V cc is switched on, the capacitors C1 and Cz are charged. These capacitors C1 and Cz discharge thr
ferroelectric materials are charatrised by
Q. A practical current source is represented by an ideal current source of 200 mA along with a shunt internal source resistance of 12 k. Determine the percentage drop in load curr
H - Parameter model :- The transistor's equivalent circuit can be dram using simple approximation by retaining its necessary features. These equivalent circuits will a
Find the maximum frequency of an output sine wave which can be produced at an amplitude of 1.5 V if the op-amp slew rate is 0.5 V/µs.
Write down basic postulates of sommerfield’s free electron gas model. Show that the number of energy states per unit energy is given by g(E) = 4Rv/h 3 (2m) 3/2 E 1/2 . What is
Q. Important function of common control subsystem? If a call is destined to a number in an exchange other than present one processing the digits, initial translator generates t
Q. The energy stored in a 2-µF capacitor is given by w c (t) = 9e -2t µJ for t ≥ 0. Find the capacitor voltage and current at t = 1s.
Q. Counters are used to realize various dividers in the schematic representation of the digital clock shown in Figure. The blocks labeled "logic array" are logic gate combinations
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