what is the sylabus for priliminaries?

2169

___ is the control used to call a windows application.

1535

How are models actually derived?

1989

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.

2016

What are maps ?

5

What are the different components of typescript?

211

List some of the uses of ms access.

840

Do text messages use data?

808

how to find the Motor,s insulation Power?

1740

What is a Quota Multiplier In A Counting Rule?

953

What are activex files?

776

Can a constructor be redefined?

1357

Name the various types of tables spaces.

1073

How can we check if one string contains another substring?

827

Can constructor be inherited?

1017