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The constants of an amplifier are given by A = 1, Ri =10,000, and Ro = 100. It is driven by a Thévenin source with vTh(t) = VOcos ωt and RTh = 20,000 . The amplifier output is connected to a 100 - load resistance. Find the power amplification, if it is defined as the ratio of the power delivered to the load to the maximum power available from the Thevenin source.
a train weight 5 megaN is taking a slope of 1 in 200 at 45 kmper hour.the engine put in 100 kw.determine the power to be put in by the engine it the train take the slope up of 1 in
Q. Write a short note on types of enclosure of machine. Sol. The various types of d.c. machine : (1) Magnetic frame or Yoke (2)
Q. Explain the different coupling schemes used in amplifiers? When amplifiers are cascaded, it is necessary to use a coupling network between the output of one amplifier and th
Q. (a) Two amplifiers, which can be represented by the model of Figure of the text, are connected in cascade (that is, head to tail), as shown in Figure. Let their parameters be R
Q. Show the Methods of material handling? Methods of material handling during operations and maintenance activities shall be considered for all facilities to ensure that the fi
what is force?
Measures for Improving Joints and Connection 1. Spacing of poles: The spacing between poles (for overhead lines) is also an important requirement. Long spans will result in
Q. what is frequency synthesized signal generator? Describe its circuit in detail. OR Give the circuit details of frequency synthesizer also explain its working. OR
A ¼-hp, 230-V, 60-Hz, four-pole, single-phase inductionmotor has the following parameters and losses: R 1 = 10 , X l1 = X l2 = 12.5 ,R 2 = 11.5 , and X m = 250 . The core
Given that , f(a,b,c,d,e) = Σm (6,7,9,11,12,13,16,17,18,20,21,23,25,28) using a Karnaugh map. (i) Find the essential prime implicants (ii) Find the minimum sum of product
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