sir, pls mail me the previous question papers of RRB Junior
Engineer Gr-II Drawing
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Explain why is an excess-3 code called an unweighted code?
an unknown semiconductor has Eg=1.1ev and Nv=Nc.it is doped with 10^15 donors,where the donor level is 0.2ev below Ec. given that Ef is 0.25ev below Ec, calculate ni and the concentration of electrons and holes in the semiconductor at 300k.
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Explain the working of voltage commutated chopper with aid of circuit diagram and necessary waveforms. Derive an expression for its output voltage?
what is the difference between delegation and containership?
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What is the difference diac and triac?
what is meant by modulation?
What are the home applications of Microcontroller?
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