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.

WHAT IS ELECTRONICS?

4 Answers   Havells, Infosys,

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in case of a bipolar junction transistor we are concerned with Vbe,,,Vce(in order to stabilise optiamally)but why don't we bother about Vbc?? why ?

3 Answers  

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0 Answers   GTL,

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why three pick-up tubes are provided in a clour camera?

0 Answers  

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As electromagnetic waves travel in space only one can happen absorption attenuation reflection refraction

4 Answers  

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what kind of negative feedback is present in a noninverting op-amp.

0 Answers  

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sir, please send me RRB Question papers for Section engineer Signal..

0 Answers  

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What is Pabx and epabx and what its use?

6 Answers   Reliance,

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box1-a box2--a box3-a-1 in 3steps using any operation get a*(a-1)-(a-1)*a in box2

0 Answers   Godrej,

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The represent number 35 in binary, number of bits required are?

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how can I pass ccna in first try in one month

0 Answers  

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Explain when a sample of germanium and silicon having same impurity density are kept at room temperature then resistivity of silicon will be higher than that of germanium, why?

0 Answers  

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