According to Shockley equation, the I – V characteristic of a diode is approximated by I = IS [ exp (nVD / VT) – 1 ]. For silicon, let the reverse bias saturation current IS as 0.000000000001. If n is ideality factor with value of 1.5, VT as thermal voltage drop of 0.026 V at room temperature, what is the value of current I that passes through the silicon diode in the heater of evaporator when the forward voltage drop VD = 0.026 V? Please take note that exp is the exponential function with e(1) = 2.718, e(2) = 7.389.

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Why do we apply on iron articles?

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what is ejector capacity and ejector economy

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What is Vacuum? If pressure is less than that of atmospheric, can we call it vacuum? If so some places have less atmospheric pressures, can we call people living there are living in vacuum?

5 Answers   ISRO, TCS,

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Any books are availble to read for industrial promotional officers exam.. Syllabus : PAPER-2 : Subject (Diploma Standard) Applied Science, Engineering and Management 1. MATHEMATICS 2. PHYSICS 3. CHEMISTRY 4. INDUSTRIAL MANAGEMENT 5. INDUSTRIAL ENGINEERING 6. COMPUTER APPLICATIONS & BASICS OF DOS, WINDOWS, UNIX, DB MANAGEMENT, DTP, CONCEPTS OF E-GOVERNANCE INCLUDING E-MAIL, E-COMMERCE, INTERNET, COMPUTER VIRUSES.

3 Answers   APPSC,

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Question 110 - When an algebraic product is defined on the space, the Lie bracket is the commutator [x,y] = xy - yx according to Lie algebra in mathematics. If [p,x] f(x) = px f(x) - xp f(x), p = -ih d / dx, find the value of [p,x] in term of i and h.

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Why should a magnesium ribbon be cleaned before burning in air?

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Is it ever advantageous to use shells in series even though it may not be necessary?

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Who built the first production scale pla (polylactic acid) facility?

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Explain what types of valves are recommended for slurry services?

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I am a Diploma Chemical Engineer by Nirma Uni; and BEng (Hons) Energy & Environmental Engineer by Napier Uni; Edinburg, UK. HPCL chemical engineering test will held on 14th July,09. So, Please send me some previous chemical engineering papers Objective types Or material to give the test.

0 Answers   HPCL,

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what is the relation between velocity & pressure. tel me if pressure in water line is increased what wil b effect on velocity ?

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