Resistivity Resistivity: The resistance of a wire or material conductor maintained at a constant temperature is related to its length (l) and its cross-sectional area (A) by the expression R = ρ l/A Where ρ is a constant of proportionality known as the resistivity of the material Then we could deduce ρ = RA/l Thus
Classwork Series and Exercises {Physics- SS3}: Electric Measurement Read More »
Following the participation of the Nigerian contingent in the World Schools Debate Competition in Bangkok this year, Nigeria has been granted the hosting rights for the 2015 edition of the competition. According to the Coordinator of the President’s School Debate, Dare Oritu, Nigeria won the hosting rights due to the brilliant performance of the country’s
Nigeria To Host 2015 World Schools Debate Competition Read More »
Introduction We define the notation 22 as “two squared” or the square of two” or “two raised to the power of 2” and it means 2 x 2. i.e. 22 = 2 x 2 (i.e. 2 multiplied by itself in 2 places ) also 23 = 2 x 2 x 2 ( i.e. 2 multiplied
Classwork Series and Exercises {Mathematics- SS1}: Indices Read More »
Introduction Electrons Electrons were discovered by Sir John Joseph Thomson in 1897 in his cathode ray experiment. He subjected residual gas to a high potential difference at a very low pressure. He observed rays travelling in straight lines from the cathode. He called the rays cathode rays. After many experiments of cathode-rays, J.J. Thomson demonstrated
Continued from last week You are what you think. You won’t do anything that is largely different from how you see the world. As a man thinketh in his heart, so is he – The Bible. If the way you see the world is like the little boy who thinks the trees are moving, you
When it comes to toilet habits, everyone is different. But, there are rules that hold true for everyone. Now, a comprehensive guide to poo colours has been drawn up and it can reveal a lot about your health. Faeces can be any shade from brown to green and be considered normal. But, there are other
What does your poo say about YOU? Colour guide reveals the health clues in stools Read More »
The Internet can be a scary place. There are people on the web who are looking to take advantage of you for their own personal gain. These people are likely looking to confuse or convince you that they are someone you should be sharing important information with. In an effort to improve your digital safety,
Google’s Useful Tips For Staying Safe On The Internet Read More »
When I hit the age bracket of being a teenager, everything changed — from the books I read, to the websites I used. At the same time, I found that more and more people would either expect the following from me and my age group, or ask my age group and I: 1. “Why don’t
4 Things Every Teenager Is Tired Of Hearing Read More »
Hello friends, sure you had a great time during your mid-term break. I am here to continue this journey to self-protection. The importance of which cannot be over-emphasized. If you have been following us, you will see that there is much about your protection that you overlook. Today I will share with you briefly how
Introduction Equal volumes of different substances have different masses or weights. For example 1 m3 of lead weighs differently from 1 m3 of wood. Also 1 m3 of water has a weight different from that of sulphuric acid or palm oil of the same volume. This is due to differences of in the quality of
Classwork Series and Exercises {Physics- SS1}: Density and Relative Density Read More »