Answer / ashutosh

if any obstruction comes in between the IR led and IR
receiver than you can use this signal by connectig any
terminals to your comparater i.e. what you want a voltage
or zero output at the output

Answer / sri

proxmity sensor is nothing but landmine sensor,generally we
use metal detectors to find landmines,so many principles are
present one of those is,whenever u place metal close to
detector, because of the difference b/w coefficents of
detector and desired metal some flux will produce and that
allows to pass current through the circuit,and produce
output.if u connect buzzer to o/p then it will make sound
whenever u place metal in front of detector.

Photolithography involves A Making photographic mask and photoetching B Only photoetching C Only masking D None of these

1 Answers  

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i cleared the written xam. for the post of atc now what i am going to prepare for the interview plz.guide me i dnt wanna loose this organisation bcoz its my dream company

0 Answers   AAI Airports Authority Of India,

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common base transistor is connected in the circuit requiring- a)high current gain b)high voltage gain c)high input impedance d)high power gain e)none of the above

7 Answers   Bhel,

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What is hybrid parameter?

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what is the difference between analog and digital communications? which is the efficient communication??

6 Answers  

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What is the meaning of tristate signal in electronics?

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iam B.E 1year student,actually i have a habit i.e anything to think pratically but always iam in confusion what i have to do

2 Answers  

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how to answer for the question what is your strength and weakness?

0 Answers   Ericsson,

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what is asynchronous data transfer???

0 Answers  

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Please send me some more Electronics Technical questions..

0 Answers   Bhel,

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what is NMC ?

1 Answers  

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what is phase reversal keying

1 Answers  

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