Recent content by hanii

  1. H

    High School Why photodiode is operated in reverse bias?

    so biasing only helps to improve the reverse current ...?? if it is so...can we get the reverse current flow through the load and produce potential difference across it without biasing the diode...??
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    High School Why photodiode is operated in reverse bias?

    so if we operate it in forward bias...the depletion layer length would be less compared to that as in reverse biased condition...there by reducing its sensitivity . why only the depletion layer is exposed to light... not all the device..?
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    High School Why photodiode is operated in reverse bias?

    why photodiode is operated in reverse bias?? can anyone please explain why photodiode is operated only in reverse bias?? can we operate it forward bias state also??
    • hanii
    • Thread
    • Bias Photodiode Reverse
    • Replies: 5
    • Forum: Optics
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    Graduate Classical charged particle's reaction to its own retarded field

    what is the conclusion?? why the electron is not accelerated to its own field?
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    Graduate How Is Rest Mass Defined in a Universe with No Absolute Rest?

    how is this equation derived? could u please explain me..
  6. H

    Graduate How Is Rest Mass Defined in a Universe with No Absolute Rest?

    so...we should be at rest relative to the frame of reference in which the object is...to find the rest mass of that object
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    Graduate How Is Rest Mass Defined in a Universe with No Absolute Rest?

    hey guys ...i've got a doubt.. when there is no absolute rest in the universe...how is rest mass defined?
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    Graduate Time Travel: What are the Theories & Factors?

    does this mean that our heart rate would slow down...and all our body functions also slow down...if we were traveling at 90% of c so that our age doesn't increase compared to the person on the earth?
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    Graduate Classical charged particle's reaction to its own retarded field

    i think in case of light ..,we feel electromagnetic radiation...not electromagnetic field...we cannot feel the electromagnetic field of an electromagnet...but we can see the effect of its presence on other substances..
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    Undergrad What is the temperature in vacuum

    is the radiation coming out of my body is an EMR?
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    Graduate Classical charged particle's reaction to its own retarded field

    the presence of the charged particle can be replaced by its field...refer feynman lectures on physics chapter 2 vol 1...in case of light...it is electromagnetic radiation...it is that radiation we feel...not electromagnetic field..we cannot feel electric and magnetic fields..can we??
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    Graduate Classical charged particle's reaction to its own retarded field

    i think that fields don't exist...these are just lines that tells us the force direction at various locations surrounding the charge...those are nothing but "effect" from the cause "turning on" of the charge..there would be no effect on the cause that produced the effect
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    Undergrad What is the temperature in vacuum

    hey...but where does our body's heat go...?? that is , it must be transferred to some other body...
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    Undergrad Can Energy Be Converted to Mass?

    but hot water is lighter than cold water...!
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    High School How do electrons start to travel though a wire?

    i want to ask one more doubt...,please spare me...you said that there are two effects traveling opposite to one another...nearly at c...,then what would be their relative speed with respect one another??