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Q. A 75-kVA transformer has an iron loss of 1 kW and a full-load copper loss of 1 kW. If the transformer operates on the following load cycle, determine the all-day efficiency:
8 hours full load at unity power factor
8 hours no load
8 hours one-half full load at unity power factor
Q. Write a brief note on common drain amplifier Since voltage at the gate-drain is more easily determined than that of the voltage at gate-source, the voltage source in the inp
Q. Illustrate the operation performed by instruction OUT 47 h, AL. Ans: It transfers contents of AL to I/O port 47h. Notice that I/O port number appears as 0047h on the 16 b
Q. Explain Charge-to-Charge Amplifier A circuit is shown in Figure in which there is a capacitor C1 in the - input line and a capacitor Cf in the feedback loop. KCL at node X g
Q. What is the speciality of a darlington transistor? A darlington pair behaves like a single transistor with a very high current gain. The total gain of the darlington is the
Q MCM is the abbreviation for 1 kcmil. problem for a de?nition of cmil.) Data for commercial-base aluminum electrical conductors list a 60-Hz resistance of 0.0880 /km at 75°C for
Find the resistance of 800 m of copper cable of cross-sectional area 20 mm . Take the resistivity of copper as 0.02 Ωm.
Depletion Zone in P-N Junction The power of the depletion zone electric field gets increases as the reverse-bias voltage increases. One time the electric field intensity incre
Q. An op amp has an open-loop frequency response as shown in Figure. (a) Find the approximate bandwidth of the circuit using this op amp: (i) With a closed-loop voltage gain
connect two given points A and B by a parabolic curve when OA=60mm,OB=80mm and angle AOB=110 degree
Give the properties and uses of silicon iron alloy and nickel iron alloy. Silicon Iron alloy: Pure iron has low resistivity that results in higher eddy current losses. These
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