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Illustrate the polarity of Barrier potential.
The free electrons which cross over the junction recombine with the holes of p-type and uncover some of the negative acceptor ions as shown in fig. 13(b) This establishes a negative charge on the p-side of the junction. This process of diffusion continues till a sufficient number of donor and acceptor impurity ions are uncovered and establish a requisite potential difference (i.e. nearly 0.3 V in case the pn junction is formed of germanium semiconductor and 0.7 V for silicon pn junction). Afterwards, further diffusion is prevented because now positive charge on n-side repels holes to cross from p-type to n-type and negative charge on p-side repels free electrons to enter from n-type to p-type. Hence a potential difference created across the junction acts as a barrier that restricts further movement of charge carriers i.e. holes and electrons. This is known as a Junction Barrier or Potential Barrier Vo
Three impedances are connected in series across a 100V, 2kHz supply. The impedances comprise: (i) An inductance of 0.45mH and 2 resistance, (ii) An inductance of 570µH a
project on not gate
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NEWTON'S FIRST LAW AND INERTIA: All the material bodies possess the property of opposing any alter in the state of rest or uniform motion when some external force is applies up
expression for the interference in transmitted light through thin films
The forced harmonic oscillations have same displacement amplitude at frequencies ω 1 = 400 Hz and ω 2 = 800 Hz. Evaluate the resonance frequency at which the displacement is maxi
1. Sodium dodecyl sulfate is a detergent with a charged hydrophilic sulfate head group and a 12 carbon hydrocarbon tail. In solid form it exists as a monomeric molecule but upon
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