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  1. prateeksikka

    transistors

    using a multimeter but with some jiggling u can come to know about the terminals base,emitter ,collector.Emitter conducts most heavily.(Q2) It is the base-emitter voltage which drives the transistor into saturation and makes the heavy current to flow from collector to emitter.(Q3) It is the...
  2. prateeksikka

    Need an Advice on majoring EE

    hi lucky! i dont know about your country ,the mobile revolution is still on,and i would go for communication especially mobile and satellites. Microelectronics deals with the miniaturizing world and is a good subject too. power and control are basically electrical subjects. Boring for me! ;D ;D ;D
  3. prateeksikka

    MP IS EVERYWHERE

    does anyone know their real names?
  4. prateeksikka

    theory question!!!???

    hi kevin! At any instant the net voltage across load is the phasor sum of three voltages.The resulting waveform is much smoother. Thats 3 phase! better than 1 phase! ;D ;D ;D
  5. prateeksikka

    C_B transistor impedance matching

    hi audioguru! we can no doubt have low i/p ang high o/p impedance but what about matching? Do we desire high or low i/p impedance for a device?
  6. prateeksikka

    TRANSMISSION LINES

    hi guys! On my way on a national highway in India,I again saw those balloon like things on the high voltage transmission lines.I am confused! What are they? :(
  7. prateeksikka

    theory question!!!???

    hi audioguru! Isnt it true what i said?I have read and in fact seen 3 phase motors running much more smmothely! ;D pistons? :o
  8. prateeksikka

    theory question!!!???

    hi there! Three phase and in general multiphase systems are generally prefered to  ensure the smoothness by which load runs especially a motor.Knocking is generally less of a problem in 3 phase motors than 1 phase motors.
  9. prateeksikka

    Rear projection tv question

    Some TVs also use some materials to enable the environment in which electrons move just before striking phosphorus on the screen. 8)
  10. prateeksikka

    Old pentium 1 processor

    No doubt u can use it as a controller if u are familiar with the purpose of all the pins and their functions. Study about its ports and pins. In fact PC is a controller  ,I used one one of its ports called parallel port to control my LCD and daily i use it for my printer! ;D ;D ;D
  11. prateeksikka

    EPROM

    hi there! by default u have 00 data at all locations in a ROM.So no LED had glown when u just give supply. When u make a data pin high u write 1 at some place which is reflected onto the data line so an LED had glown! in third case i guess the address and data lines may be multiplexed when u...
  12. prateeksikka

    EPROM

    a part of your project would be to test if this ROM is ok. write data say FF into all locations of ROM through a parallel port interface like LAB TOOL 48. and retrieve the data back .Can u write some code in C or assembly language or even VB? ;D
  13. prateeksikka

    anybody use msn messenger?

    its feebly famous here in india , we prefer to use Yahoo Messenger here ;D
  14. prateeksikka

    which programing language to learn

    proview 32 is such a program using this kit u can program almost any controller and that too writing the code in C purely! ;D
  15. prateeksikka

    EPROM

    this project mainly requires u to have a good hand one one programming language good luck! ;D
  16. prateeksikka

    audio amp

    hi david ! thanks for the answer .anyway can u tell me what is the deciding factor for us to tell if we require maximum power transfer or maximum voltage transfer as say in case of audio amp we go for max.voltage transfer while for RF amp we go for max power transfer? ???thanks in advance
  17. prateeksikka

    audio amp

    hi audioguru! in this case too we dont need impedance matching infact we need max. voltage transfer.right? ;D what is the diff b/w RF and audio in that case i.e why no standing waves? is it known ?
  18. prateeksikka

    Turn the lamp On & Off gradually...

    yes sir! thats the age of miniaturization! ;D certainly a thryristor controlled power supply would be better than a bulky motor for a variac. we can certainly control thyristors through controllers (micro) feeding power to the lamp! this world is going to shrink one day!!!!1 ;D
  19. prateeksikka

    Turn the lamp On & Off gradually...

    hi audioguru! i guess changing the frequency ideally wont have effect on the brightness but practically would have. I guess all of us know that on a 50 Hz mains supply a bulb turns on and off 50 times a second.it would turn of once a second if it were 1Hz.and turning on and off once a second...
  20. prateeksikka

    LOAD RESISTOR IN A MOSFET AMPLIFIER

    hi audioguru! that means we are interested in maximum voltage transfer from source to load than maximum power transfer in audio circuits.But why is it so,as far as i ve studied we always prefer max power transfer from source to load? ???plz do reply! i am surprised
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