vertically below P2. The belt is run by an electric motor M. B1and B2 are two metal brushes called collecting combs. The positive terminal of a high tension source (HT) is connected to the comb B1. Due to the process called action of points‚ charges are accumulated at the pointed ends of the comb‚ the field increases and ionizes the air near them. The positive charges in air are repelled and get deposited on the belt due to corona discharge. The charges are carried by the belt upwards as it moves
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neutrons. Protons have a positive charge (+)‚ electrons have a negative charge (-) and neutrons have no charge at all‚ they are neutral. Atoms normally have the same amount of electrons and protons‚ making them neutral and having no charge. When rubbing things together‚ electrons can move from one atom to another‚ resulting in some atoms having extra electrons and a negative charge. The other atoms now have more protons than electrons and a positive charge. When the charges are separated‚ it is static
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Physics Preliminary 8.2 The World Communicates 1. The wave model can be used to explain how current technologies transfer information 1. Describe the energy transformations required in one of the following: – Mobile telephone – Fax/modem – Radio and television A. An energy transformation is a change in the type of energy‚ for example a change from sound energy to electromagnetic waves. Relating this to the mobile telephone‚ it undergoes basic energy transformations of‚ sound wave
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AS Level Physics: Terms & Definitions:- Measurement Random errors are errors of measurements that result in a scatter of readings about a mean value. Systematic errors are errors of measurement which occur according to some fixed patterns such that they consistently give out an over-estimation or under-estimation of the true value. Accuracy is a measure of how close the results of an experiment agree with the true value. Precision is a measure of how close the results of an experiment
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experiment you can prove that electric charges can produce by using only a balloon and pieces of papers you can understand further static electricity and charges. And how it is produced. Introduction Have you ever wondered why rubbing a balloon make pieces of paper attract with it? The effect is due to static electricity‚ but how is the static electricity made‚ and why does it make pieces of papers attract in the balloon? Static electricity is the buildup of electrical charge in an object. Sometimes
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bridging saf‚ many do not bother to know or ignore this sunnah‚ if we to appreciate this sunnah we will find many advantages if practice it as united all Muslims and some Proven test had shown bridging saf can revitalize our bodies and can rebalance the charges of the human body when bridging shoulders and feet of each other during prayer congregation. 1.Introduction A-Whether you noticed or not‚ saf in congregational prayers now more and more long-distant‚ previously before the prayer of the things that
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electromagnetic radiation (EMR) is the sun. There are various similarities such as the presence of electric and magnetic field in both EMR and plasma. Both transport contain energy and are ubiquitous in the universe. However‚ there are large differences between EMR and plasma. Differences between EMR and plasma EMR is energy that propagates through a medium in the form of EM waves. It has an electric and magnetic field which oscillate in phase perpendicular to each other and to the direction of
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MTN Learn Physical Sciences Grade 12 radio support notes MINDSET LEARN XTRA GRADE 12 PHYSICAL SCIENCES RADIO BROADCAST NOTES CONTENTS Introduction ................................................................................................................ 3 Broadcast Schedules ................................................................................................ 5 Preparing for Examinations ..................................................................................
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pH of about 4.7 and can be easily separated around this isoelectric pH. It readily dissolves in dilute acids and alkalies. Casein is present in milk as calcium caseinate in the form of micelles. These micelles have negative charge and on adding acid to milk the negative charges are neutralized. The main protein in milk is casein. Casein is a phosphoprotein which has phosphate groups attached to the hydroxyl groups of some of the amino acids side-chains. Casein exists in milk as a calcium salt‚ calcium
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magnitude of their charges & inversely proportional to the square of the distance between them -k is Coulomb’s constant -q1 and q2 are the charges (measured in Coulombs; 1 Coulomb (C) = 6.3 x 1018 electrons) -charge of a proton = e = 1.6 x 10-19 C; charge of an electron = -1.6 x 10-19 C -r is the distance between charges along the same line *Coulomb’s Law applies only to point charges or particles & to spherical distributions of charges -Fe is attractive if charges are of opposite
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