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Q. Consider a conducting loop of length l and width w, as shown in Figure, rotated about its axis (shown by the broken line) at a speed of ωm rad/s under the influence of a magnetic field B.
(a) Obtain an expression for the induced emf, assuming the angle θm is zero at t = 0 and θm = ωmt .
(b) If a resistor R is connected across terminals a-a , explainwhat happens and howthe principle of energy conservation is satisfied.
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A 3-phase, wye-connected, 11 kV, 137.5 MVA turbo-alternator of 0.8 power factor lagging has a synchronous reactance XS = 1.4 Ω. Assume the machine to be ideal for convenience of an
Determine the active - reactive and apparent power: In the given circuit, determine the active, reactive and apparent power. Figure Solution The inductive
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Q. Show Transformer equivalent circuits? Transformers come in various sizes, from very small, weighing only a few ounces, to very large, weighing hundreds of tons. The ratings
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Q. We have discussed three different color spaces: RGB, HSI and CMY(K). Specify the need for multiple color spaces. Why can we not use only one? Q. A telescope in an observatory
Consider an S band (3 GHz) radar with a rotating aperture antenna with a width of 3 m. Suppose the antenna rotates at a rate of one rotation every 10 seconds. Assume the 3 dB bea
Customer Indexing: Customer indexing (CI) is a method for enumerating the total number of consumers in a utility and tagging them to their respective poles, transformers and f
Unconditional Call Instruction CALL ( Unconditional Call) Instructions :This instruction calls the subroutine program stored at memory location specified in the instruction
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