What is record data type?

980

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What is the file extension for c#?

1092

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What is Twill weave?

5

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What is m files document management?

1

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Write the code to double click an element in selenium?

929

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1. A 380 / 220 V r.m.s. 3-phase 4-wire circuit carries loads of 8 + j8.1 ohm; 4 + j4.1 ohm; and 2 +j2.1 ohmin the three phases respectively. The length of the circuit is 100 m, and the resistivity of the phase conductors is 0.0005 Ω/m. The neutral conductor is of the same size as the phase conductors. a) Select a reference angle 0for the first phase. Then write down the three phase voltages in both polar format and complex number format. b) Make appropriate assumptions, and take temperature effects on resistance is insignificant. Calculate the currents in the three phases. (Note: Determine conductor resistance, and apply Kirchhoff’s Voltage Law) Based on the result, suggest a main switch rating for the circuit. c) Show your preferred direction of neutral current in a diagram, and then determine its value. (Note: Apply superposition principle, and Kirchhoff’s Current Law) Use its magnitude to show that in this circuit, the unbalanced load may increase the voltage drop in some of the phases. (Note: Also observe the common volt drip in neutral) State your assumptions, if there are any. d) Suddenly the neutral wire of the circuit is broken. Estimate the new currents in the first phase, i.e. Phase L1. State your assumptions, if there are any.

2110

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Define Attribute Selector ?

711

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What is database example?

937

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What are the functions of temperature scanner in power transformer?

2231

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Explain about organising and staffing in management.

5

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Why did the messaging bridge fail to connect to the source bridge destination? : BEA Weblogic

1003

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Why does marble rarely contain fossils?

857

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Do python classes need init?

1033

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What are modes available in spy mode in ocr?

556

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What is reverse path multicasting?

750

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