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(a) How transistor will be used as an amplifier?
(b) Give relation between α and β?
(c) Show the biasing arrangement for the PNP transistor in common base configuration, so that it works in active region. Illustrate input and output characteristics?
(d) Describe why ordinary junction transistor is known as bipolar?
Q. A 300-kVA transformer has a core loss of 1.5 kW and a full-load copper loss of 4.5 kW. (a) Calculate its efficiency corresponding to 25, 50, 75, 100, and 125% loads at unity
commutator in d.c machine acts as... what????
Q. Calculate the diameter of an air-filled circular waveguide? Unlike transmission lines, which operate at any frequency up to a cutoff value, waveguides have both upper and lo
Q. What do you eman by Digital Circuits? The use of nonlinear devices (BJT and FET) in constructing linear amplifiers. Although these devices are inherently nonlinear, their op
i would like to construct a colpitts oscillator using a series lc tank circuit as a feedback. the circuit will have a frequency of 150 Khz and it will drop when varying the value o
Kirchoff's Current Law The total current entering a node in a circuit is equal to the total current leaving that node. A Node is a junction between two or more components.
Compare CALL and PUSH instructions CALL PUSH When CALL is implemented the microprocessor automatically stores the 16-bit address of the instruction next to CALL on the sta
how it occurs?
What are hard magnetic materials? Hard Magnetic materials- They have a slowly rising magnetization curve along with large hysteresis loop area and therefore large energy losses
Number of holes in valence band: Derive the expression for number of holes in valence band and Fermi level in an intrinsic semiconductor. (b) By that percentage does the
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