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State the process of diffusion
When these two pieces are joined together and suitably treated, they from a pn junction. Moment they form a pn junction, some of the conduction electrons from n type material diffuse over to p-type material and undergo electron-hole recombination with the holes available in valence band. Concurrently holes from p-type material diffuse over to n-type material and undergo hole-electron combination with the electrons available in conduction band. This process is known as diffusion.
What are bare fibers? It used mostly with PMMA fibers and refers to the optics which have no external protection sheath.
Draw a labelled diagram of a moving coil galvanometer. Verify the principle on which it works. Reduce an expression for the torque acting on a rectangular current carrying loop kep
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what is dead time.
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