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What is a generator? What is the function of a generator?

What is a generator? What is the function of a generator? A generator is a power generating device with which kinetic energy is converted to electrical energy. The making of a generator is based on the principle of electromagnetic induction. Most of the electricity we use in our homes is produced by generators. Inside a generator, coils of wire are rotated between the poles of a magnet. As the coils rotate, they cut through magnetic field lines generating current.

What do you mean by alloy?

What do you mean by alloy? An alloy is a substance made by melting two or more elements together, at least one of them a metal. An alloy crystallizes upon cooling into a solid solution, mixture, on an intermetallic compound. The components of alloys can not be separated using physical means. An alloy is homogeneous and retains the properties of a metal, even though it may include metalloids on non-metals in its composition. Such as stainless steel, brass, bronze, white gold, etc.

Explain the importance of recycling metal?

Explain the importance of recycling metal? The number of molecules of every element in the world is defined. It is not possible to produce fundamental elements. So every mineral is not infinite, they are finite. The resource of the metal will be finished within 120 - 150 years if we use the metal at the present rate. So if we extract the metal in a limited amount we can get it for many years. Besides this, recycling metal is important in solving environmental problems. It will save both money and fuel.

What is galvanizing?

What is galvanizing? The method of laying zinc coating on any metal is called galvanizing. It does not require electrolysis. Zinc is coated on anyway on any metal.

Physics to Save Life

Physics to Save Life Learning Outcome Basis of bio-physics. Contribution of Jagdish Chandra Bose in bio-physics. Applications of ideas and theories of physics in the instruments for diagnosis of diseases in medical science. Hazards of using modern technology and devices and mechanism of prevention. Necessity of diagnosis for proper treatment and raise consciousness among others. Contribution of science and technology for diagnosis of diseases. Explain the human body that runs following the rules of physics. Physics Table of contents Physical Quantities and Their Measurements Motion Force Work, Power, and Energy State of Matter and Pressure Effect of Heat on Matter Waves and Sound Reflection of Light Refraction of Light Static Electricity Current Electricity Magnetic Effects of Current Modern Physics and Electronics Physics to Save Life

Modern Physics and Electronics

Moden Physics and Electronics Learning Outcome Relation between work and energy. Physics Table of contents Physical Quantities and Their Measurements Motion Force Work, Power, and Energy State of Matter and Pressure Effect of Heat on Matter Waves and Sound Reflection of Light Refraction of Light Static Electricity Current Electricity Magnetic Effects of Current Modern Physics and Electronics Physics to Save Life

Magnetic Effects of Current

Magnetic Effects of Current Learning Outcome Relation between work and energy. Necessary Equations No.  Information  Unit  1    2  3  4     Physics Table of contents Physical Quantities and Their Measurements Motion Force Work, Power, and Energy State of Matter and Pressure Effect of Heat on Matter Waves and Sound Reflection of Light Refraction of Light Static Electricity Current Electricity Magnetic Effects of Current Modern Physics and Electronics Physics to Save Life

About Me





Md. Saifur Rahman


B.Sc (Honors), M.Sc (Chemistry)

Former Principal of South Point School and College, Dinajpur.

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