physics class viii

>Now, suppose that the slab is cut lengthwise into two parallel slabs (fig.(b)) each of area A/2. If the current flowing through the full slab is I for a given voltage V, then the current flowing through each half -slab is I/2. Therefore, the resistance of each half - slab is twice that of original..

Measurement and Experimentation - The goal of physics is to provide an understanding of nature. The science of physics was developed to explain our physical environmen..

> 32.695 Chromium 1.800x10 - 7 51.996 3 17.332 Aluminium 9.360x10 - 8 27.1 3 9.03 Gold 6.812x10 - 7 197.2 3 65.73 Nickel 3.040x10 - 7 58.68 2 29.34 Anions Oxygen 8.238x10 - 8 16 2 8 Chlorine 3.671x10 - 7 35.46 1 35...

The word 'Physics' comes from the Greek word 'phusis' meaning 'nature', introduced by the ancient scientist 'Aristotle'. Man has always been fascinated by nature. So, he questioned and sought answers for every phenomena nature could offer. The branch of science which is devoted to the st..

Physical World and Measurement - Humans have always been curious about the world around them. The world has an astonishing variety of materials and bewildering diversity of life and behaviour. The inquiring and imaginative human mind has responded to the wonder and awe of nature in differ..

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You have learnt in the earlier chapters that flow of electrons constitutes an electric current and current can be generated from a battery or a generator. Scientists later discovered that there are many other ways of producing the stream of electron..

Introduction - You have learnt in the earlier chapters that flow of electrons constitutes an electric current and current can be generated from a battery or a generator. Scientists later discovered that there are many other ways of producing the stream of electron..

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Four Categories of Physical Quantities - Based on dimensions, physical quantity can be classified under four categori..