Electrical Engineering Answers

Do some extensive research on Maxwell's equation. Write a reflection paper about your learnings. You can use illustrations, figures, etc that would explain best your learning. Answer the following questions in your reflection paper:

1. What are the importance of each equation in your chosen field of study?
2. What are the application of each equation to your chosen field of study? Explain at least 1 concrete application.
3. What are Maxwell's equations and why are they important to your field of study?
4. What are the 4 maxwell's equations? What do they mean and what are their mathematical equation equivalent?

Consider a cylindrical body 30cm in length and 15cm in diameter at 327°C suspended in the air. Assuming the body closely approximates a blackbody, determine the rate at which the cylinder emits radiation energy

1. Three 25Ω loads are connected in STAR to a three-phase supply with a 230V phase voltage (Vp). Calculate the power dissipated by the system.

2. Simulate three 25Ω loads connected in STAR to a three-phase supply with a 230V phase voltage and measure the power dissipated using the one wattmeter method.

3. Explain why the one wattmeter method is unsuitable for an unbalanced system.

Use appropriate Lagrange interpolating polynomials of degrees one, two, and three to approximate

each of the following:

a. f (8.4) if f (8.1) = 16.94410, f (8.3) = 17.56492, f (8.6) = 18.50515, f (8.7) = 18.82091

b. f −1

3  if f (−0.75) = −0.07181250, f (−0.5) = −0.02475000, f (−0.25) = 0.33493750,

f (0) = 1.10100000

c. f (0.25) if f (0.1) = 0.62049958, f (0.2) = −0.28398668, f (0.3) = 0.00660095, f (0.4) =

0.24842440

d. f (0.9) if f (0.6) = −0.17694460, f (0.7) = 0.01375227, f (0.8) = 0.22363362, f (1.0) =

0.65809197

All about programmable peripheral interface (interface to A/D and D/A converter).

A 100 KVA. 4600 V three phase wye-connected alternator has an

armature resistance of 2 Ω per phase and synchronous armature

reactance, Xs’ of 20 Ω per phase. Find the full load generated voltage

per phase at: a)Unity power factor b) A power factor of 0.75 lagging ii)

Repeat part i) to determine the generated voltage per phase at full load

with: a) A leading load of 0.75 power factor b) A leading load of 0.4

power factor.

A parallel resonance circuit has a resistance of and half-power frequencies of 86 kHz and 90 kHz. Determine, (a) the capacitance, (b) the resonant frequency, (c) the inductance, (d) the bandwidth and (e) the quality factor.

Represent the binary data stream 10110101 in a given line coding format:

(i) Bipolar NRZ (ii) Polar RZ (iii) AMI (iv) Split Phase