Electron Dynamics

Force in a Magnetic Field

Force in a Magnetic Field: Force in a Magnetic Field – If a conductor of length l metres carrying current I amperes is placed in a magnetic field of intensity B (tesla), and if B is perpendicular to I, the force acting on the conductor is If N electrons are contained in a length l

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What is Current Density?

What is Current Density? By definition, the current density, denoted by the symbol J, is the current per unit area of the conducting medium i.e., where current I is the rate of flow of charge. If N is the free electron density moving in the conducting medium, e is the charge of electron, then the

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What is Electron Volt?

What is Electron Volt? The joule (J) is the unit of energy in the SI system. In some engineering power problems this unit is very small, and a factor of 103 or 106 is introduced to convert from watts (1 W = 1 J/s) to kilowatts or megawatts, respectively. For a discussion of the energies

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