Recent content by esha

  1. esha

    The validity of ray optics in telescopes

    okk
  2. esha

    The validity of ray optics in telescopes

    oo.. so the star looks like a blur... m i right??
  3. esha

    The validity of ray optics in telescopes

    u can check out the fresnel distance... which deals with the validity of ray optics
  4. esha

    The validity of ray optics in telescopes

    the largest telescope in the world has an aperture of 10 m. According to the fresnel distance this makes ray optics valid for it, for a wavelength of lightsay 500 nm, uptil a distance of 2 * 10^7 m. I have read that after the fresnel distance, diffraction tends to dominate. But telescopes tend...
  5. esha

    I Output of a half wave rectifier

    ohh.. ok
  6. esha

    I Output of a half wave rectifier

    thanks a lot
  7. esha

    I Output of a half wave rectifier

    yea it does... U r really a persistent teacher... I do wish i had one like u in real life
  8. esha

    I Output of a half wave rectifier

    lets consider the wire connected to diode A and the wire connected to the load resistor B. When forward bias occurs then current flows through A and B. A due to the diode has an output current in the form of pulses. But B has no diode therefore the current would be ac through it. Both of...
  9. esha

    I Output of a half wave rectifier

    no the other wire coming from the secondary and directly meeting the load transistor
  10. esha

    I Output of a half wave rectifier

    i mean the other wire... during forward bias circuit is complete. Current naturally flows through the other wire
  11. esha

    I Output of a half wave rectifier

    but when the circuit is complete the diode wire has a pulsating current while the other wire has an ac current. Wouldnt that make things messy at the load resistor
  12. esha

    I Output of a half wave rectifier

    ohh... i got it... i was being so stupid
  13. esha

    I Output of a half wave rectifier

    why is there a hole in the circuit
  14. esha

    I Output of a half wave rectifier

    from the secondary transformer due to mutual induction
  15. esha

    I Output of a half wave rectifier

    No current is flowing through the DIODE. But current should flow from the other wire
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