Archives for Note - Page 2

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Semiconductor and Electronics

Present ear is called the era of Electronics. Now-a-days application of electronics are seen in our everyday life-like radio, television, VCR, computer, interne, mobile, i-pad etc. Electronics is originated from the word electron. Electronics in a branch of physics dealing with the flow of electrons in devices like valves or semi-conductor devices. The working of…
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New Curriculum

New Curriculum Physics Note of Current Electricity

Electric current is the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which is named Amperes. In most DC electric circuits, it can be assumed that the resistance to current flow is a constant so that the current in the circuit is related to voltage and resistance by…
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Bangla Version

Static electricity

Static electricity is an excess of electric charge trapped on the surface of an object. The charge remains until it is allowed to escape to an object with a weaker or opposite electrical charge, such as the ground, by means of an electric current or electrical discharge. Static electricity is named in contrast with current…
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Bangla Version

Electronics

Electronics Electronics deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies. The nonlinear behaviour of active components and their ability to control electron flows makes amplification of weak signals possible and electronics is widely used in information processing, telecommunications, and signal…
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Bangla Version

Gravitation

Gravitation, or gravity, is the natural phenomenon by which physical bodies appear to attract each other with a force proportional to their masses. It is most commonly experienced as the agent that gives weight to objects with mass and causes them to fall to the ground when dropped. The phenomenon of gravitation itself, however, is…
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Bangla Version

Elasticity

When an elastic material is deformed due to an external force, it experiences internal forces that oppose the deformation and restore it to its original state if the external force is no longer applied. There are various elastic moduli, such as Young's modulus, the shear modulus, and the bulk modulus, all of which are measures…
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