Friday, February 26, 2016

Setup email ke Outlook 2016

Hari ini kerana teruja dapat install office 365, terasa lah pula nak gunakan Outlooknya sekali. Dah lama tak gunakan kemudahan Outlook untuk send/receive email. Kali pertama pasang secara terus tak menjadi, rasa susah hati jugalah.

Tetapi rasa nak mencuba lagi, kali ini kena studi dululah cara-cara manual dan link dibawah ni memang membantu:

http://pop2imap.com/yahoo_outlook_2013.php

Jadi diringkaskan cerita dapatlah Outlook berfungsi dengan baik. Selamat Mencuba.

Thursday, February 25, 2016

Kirchhoff Rule Circuit (Hukum Litar Kirchhoff)

oleh

Chen Hui Yee

Sekolah Menengah Kebangsaan Pahi

ABSTRACT

Objective of this project is to prove that Kirchhoff’s Law has its limits. Calculation is used to prove the limits of Kirchhoff’s Law. Loops can be drawn on the diagram of complex circuit. Kirchhoff’s first law and Kirchhoff’s second law is used to solve the loops. Loop number 3 and loop number 4 are minor loops whereas loop number 5 is a major loop. When the fifth loop is involved in one of any 3 combinations, the answers will be wrong. While only loop 1,2 and 4 can resolve the complex circuit.

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Temperature During Twilight In Kuala Krai, Kelantan (Suhu Semasa Twilight Di Kuala Krai Kelantan)

oleh

Soo Mei Teng

Sekolah Menengah Kebangsaan Pahi

 

ABSTRACT

Usually, we know that the temperature of the sky will drop when sun sets. But, how does the temperature change time by time? Because of the curiosity, an experiment is carried out and the temperature of twilight for dusk in the town of Kuala Krai is determined by using SQM-LU. From the experiment done, it is found that the temperature drops gradually from time to time that makes a curve. It is also found that due to the heat produce by the lights in the night (street lights, bill board’s light and house lights) make the temperature of the night sky in Kuala Krai get to be hotter.

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Phasor Diagram (Gambarajah Fasor)

Oleh

Liew Wei San

Sekolah Menengah Kebangsaan Pahi

Abstract :

For this project, main objective is to apply amplitude and projection of sinusoidal graph in alternating current and thus determine the phase differences between cosine and sine waveform. The application of phasor diagram is increasing the reliability of the power grid by detecting faults early, allowing for isolation of operative system, and the prevention of power outages. This concept came from Charles Proteus Steinmetz in 1893 due to its first presentation of handwriting of simplified mathematical description of the waveforms of alternating current electricity and that brings the invention of phasor measurement units (PMU) in 1988 by Dr. Arun G. Phadke and Dr. James S. Thorp. Based on analysis, there should be a phase difference between voltage and current in an alternating circuit to turn negative feedback into positive feedback and turn an amplifier into an oscillator . When there is phase difference, the current is said to "lag" the voltage by 90degrees (for a sin stimulus). Conversely, the non-existing ‘’lag’’ may lead to a power outages if being neglected. In conclusion, phase difference between cosine and sine graph = 90 ͦ. Thus, cos ωt = sin (90- ωt) and sin ωt = cos (90- ωt) .

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Saturday, February 13, 2016

Example 13.8

Examp 18.9

Reference:

D. Young, H., Freedman, R. A., Sandin, T. R., & Ford, A. L. (2000). university physics with modern physic tenth edition; international edition (International edition). Addison-Wesley Inc.