Series-Combination-of-Metallic-Rods

Series Combination of Metallic Rods

Series Combination of Metallic Rods 1) Series Combination: Let n slabs each of cross sectional area, lengths  and conductivities  respectively be connected in the series. i) Heat Current: Heat current is the same in all the conductors. i.e., , ii) Equivalent thermal resistance: , iii) Equivalent thermal conductivity: It can be calculated as follows, from Read more about Series Combination of Metallic Rods[…]

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Electrical Conducting Materials for Specific Use

Electrical Conducting Materials for Specific Use Electrical conducting materials are the basic requirement for electrical engineering products. 1) Filament of electric bulb: It is made up of tungsten which has high resistivity, high melting point. 2) Element of heating devices (such as heater, geyser or press): It is made up of nichrome which has high Read more about Electrical Conducting Materials for Specific Use[…]

Physics

Law of Radioactive Disintegration

Law of Radioactive Disintegration The spontaneous breaking of a nucleus is known as Radioactive Disintegration. According to Rutherford and Soddy made experimental study of the radioactive decay of various radioactive materials and gave the following the laws: Radioactive decay is a random and spontaneous process. It is not influenced by external conditions such as temperature, Read more about Law of Radioactive Disintegration[…]

Physics

Resistivity, Conductivity and Conductance

Resistivity, Conductivity and Conductance 1) Resistivity: Resistivity is a measure of the resistance of a given size of a specific material to electrical conduction. From, , if ,  then  i.e. resistivity is numerically equal to the resistance of a substance having unit area of cross section and unit length. i) Unit and dimension: Its SI Read more about Resistivity, Conductivity and Conductance[…]

Physics

Motion of Charge Particle in Electric Field

Motion of Charge Particle in Electric Field When charged particle initially at rest is placed in the uniform field: Suppose a charge particle having charge Q and mass M is initially at rest in an electric field of strength E. The particle will experience an electric force which causes its motion. (i) Force and Acceleration: Read more about Motion of Charge Particle in Electric Field[…]