Recent content by tornado

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    How to Measure and Calculate Band Gap of a Photovoltaic Device

    Thank you so much! But i can't find a monochromatic light. Is there any different option? I tested this device with temperature. Its like a thermophotovoltaic.
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    How to Measure and Calculate Band Gap of a Photovoltaic Device

    Hi there! I bought a photovoltaic cell. I would like to learn its band gap at 300 K and 0 K. How can i measure band gap or calculate? I have already measured Temperature to Vmax values. I couldn't find any good information about this topic. Thanks.
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    PV Basics: Learn V(open circuit), Ishort, Fill Factor

    Dear Forum Members,, I would like to learn photovoltaics. There are some parameters like V(open circuit), Ishort, fill factor etc. And also i would like to learn the graph of intensity to Voc and Ishort. Could you suggest me to which source i need to look? Thanks
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    Calculation of Light Intensity

    Hi all, I would like to calculate light intensity of a bulb from 0.5 meter. Which formula shoul i use? I have a PV. Dimensions are 12x12 cm. Bulb is 100 Watt. Thanks
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    B Find the Perfect 4 Point Probe Head Online - Expert Recommendations

    I need just probe, they are selling a set of 4pp
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    B Find the Perfect 4 Point Probe Head Online - Expert Recommendations

    Hello! Dear Forum Members, I'm searching 4 point probe head on internet but i could'nt find it. Could you help me find it?
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    ∇ x E in Cylindrical Cordinates

    can someone help? in cylindrical coordinates not polar. just book says its in polar coordinates
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    ∇ x E in Cylindrical Cordinates

    İf possible, could you look a book named by Fiber Lasers, Basics Tech and App's. In this book page 12, you will see the equations set in polar coordinates for Maxwell equations. Maxwell Equations set in polar coordinates: My homework is by using Maxwell equations in polar coordinates, to...
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    ∇ x E in Cylindrical Cordinates

    is it true? 1. row i j k 2. row d/dr d/dφ d/dz 3. row e(r) e(φ) e(z) so where can i use x=r.cos(φ) y=r.sin(φ)
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    ∇ x E in Cylindrical Cordinates

    Homework Statement I would like to re-write equation according to polar coordinates. ∇ x E = determinant of Polar coordinates. My question is how can i write determinant of polar coordinates? Homework Equations Maxwell Equations. (Faraday) The Attempt at a Solution E(x,y,z)= e(x,y) e^jβz...
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