reading of the galvanometer remains the same with switch S open or closed‚ then what is the value of current through galvanometer ? 1 di es IP IR P w .s to V B Q HS w A da y D C G D w R 6. 7. 8. 9. How will the magnetic field intensity at the centre of a circular coil carrying current change‚ if the current through the coil is doubled and the radius of the coil is halved ? 1 Define eddy current. What is the ratio of speed of gamma rays and radiowaves in vacuum ? Prove
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------------------------------------------------- Magnetism From Wikipedia‚ the free encyclopedia This article is about magnetic materials. For information about objects and devices that produce a magnetic field‚ see magnet. For fields that magnets and currents produce‚ see magnetic field. For other uses of "Magnetism"‚ see Magnetism (disambiguation). Magnetic leads here. For other uses of magnetic‚ see Magnetic (disambiguation) A magnetic quadrupole Electromagnetism | | * Electricity * Magnetism | Electrostatics[show]
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power plant devices providing gigawatts of power. The electric generator animation below demonstrates an example on how a generator works to produce energy. Two black arrows show the direction of the coil rotation. The blue lines represent magnetic field directed from north pole to south pole. The red arrows show the instantaneous direction of the induced AC current. Please wait a few seconds while the applet is loading (during which your browser may briefly freeze). Don’t refresh the page
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produce electromagnetic fields which act on other charges. Electricity occurs because of the following‚ an electric charge‚ that is a property of some subatomic particles‚ which determines their electromagnetic interactions. Electrically charged matter is influenced by‚ and produces‚ electromagnetic fields‚ electric current which is a movement or flow of electrically charged particles‚ typically measured in amperes. Electric field an especially simple type of electromagnetic field produced by an electric
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Basics of Magnetism by Ron Kurtus (revised 29 January 2013) Magnetism is a force of attraction or replusion that acts at a distance. It is due to a magnetic field‚ which is caused by moving electrically charged particles. It is also inherent in magnetic objects such as a magnet. A magnet is an object that exhibits a strong magnetic field and will attract materials like iron to it. Magnets have two poles‚ called the north (N) and south (S) poles. Two magnets will be attacted by their opposite poles
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ACKNOWLEDGEMENT I would like to take this opportunity to express my profound sense of gratitude and sincere thanks of my guide Mrs. ANJALI GUPTA Assistant Professor‚ Department of Electrical and electronics Engineering‚ NIET‚ Greater Noida for being helpful and great source of inspiration. His keen interest and constant encouragement gave me confidence to complete my work. I wish to extend my sincere thanks for his excellent guidance suggestion for the successful completion of my seminar work.
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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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of Magnets Objects having magnetic field is called as magnets. Normally magnets are of two types- Permanent magnets and Electro magnets. Permanent magnets are those magnets which occur in nature and do not depend upon external source for their magnetic field. On the other hand electromagnets are those magnets which use electric current to generate magnetic field. Classification of Magnets There are different types of magnets with different physical and magnetic properties and strength. These
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Hendershot Fuel Less Generator 2 Hendershot Fuel Less Generator What is a fuel less generator? All over the world‚ people live with the idea that it’s necessary to burn fuel in order to produce power that we can use. We have been persuaded that we have to buy coal‚ coke‚ timber‚ kerosene‚ gasoline‚ diesel‚ propane etc to burn‚ so that we can obtain our precious energy. And yes‚ it is perfectly true that burning these materials will indeed result in energy. And yes‚ we need it
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An Introduction to Magnetic Therapy An Introduction to Magnetic Therapy Magnetic Therapy has risen greatly in popularity in the last three decades. As part in the general attention given to alternative medicine and drug-free palliative care‚ Magnet therapy (or magnotherapy) has blossomed into an industry worth an estimated five billion US dollars in 1999.[1] It is safe to assume that with the advent of Internet shopping‚ this figure has risen exponentially ever since. Magnetic products can be roughly
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