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Title: burglar alarm system using ic 555 and ldr pdf
Page Link: burglar alarm system using ic 555 and ldr pdf -
Posted By: baladari
Created at: Thursday 17th of August 2017 05:53:04 AM
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The circuit illustrated here is used as Burglar alarm. LDR is kept at such a place that when thief enters our house then a shadow will fall on the LDR. A small beam of light source is also needed to supply continuous signal to LDR. For best Light source we can use Laser diode which will work for few km. For home use Infra Red LED s will be good and will be tricky to thief and works with same efficiency at night.

This circuit uses a popular timer I.C which is 555. I.C 555 is connected as comparator with pin 6 connected with positive supply, t ....etc

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Title: project report on fire alarm using ldr
Page Link: project report on fire alarm using ldr -
Posted By: motorola7434
Created at: Thursday 17th of August 2017 08:45:45 AM
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To get full information or details of fire alarm using ldr please have a look on the pages

http://seminarsprojects.net/Thread-simple-fire-alarm-circuit

if you again feel trouble on fire alarm using ldr please reply in that page and ask specific fields in fire alarm using ldr ....etc

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Title: efficient power saver for street lights using ldr rtc and leds light using solar pow
Page Link: efficient power saver for street lights using ldr rtc and leds light using solar pow -
Posted By: master
Created at: Thursday 17th of August 2017 06:46:11 AM
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can u pls give me the full report including the source code :-) ....etc

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Title: burglar alarm using 555 and ldr
Page Link: burglar alarm using 555 and ldr -
Posted By: nehamishra12
Created at: Thursday 05th of October 2017 04:40:05 AM
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Title: fire alarm using ldr pdf
Page Link: fire alarm using ldr pdf -
Posted By: norek
Created at: Thursday 17th of August 2017 06:47:08 AM
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Title: kerala psc part 548 Village Extension OfficerAnswer key -9
Page Link: kerala psc part 548 Village Extension OfficerAnswer key -9 -
Posted By: anusree
Created at: Thursday 12th of October 2017 03:24:38 PM
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78.Ans : C 
19 -> 19 X 2 + 1 = 39 
അതുപോലെ
42-> (42 X 2) + 1 = 85
19:39 : : 42 : 85
79.Ans : B 
ശ്രേണി = k l mk k Imkki m kk Imk
80.Ans : C 
കിവിയ്ക്ക് മാത്രം പറക്കാൻ കഴിയില്ല.
81.Ans : D 
82.Ans : C 
have എന്നത്  plural ആയതിനാൽ  Subject ഉം plur ആകണം 
83.Ans : C 
top - highest point or part.
84.Ans ....etc

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Title: to construct a switch using a transistor and draw the graphs between input and outpu
Page Link: to construct a switch using a transistor and draw the graphs between input and outpu -
Posted By: sumeet0836
Created at: Thursday 17th of August 2017 05:28:40 AM
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To get full information or details of to construct a switch using a transistor and draw the graphs between input and output please have a look on the pages

http://slidesharesanjaynegi98/h-physics-xii

http://electronics-tutorials.ws/transistor/tran_4.html

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Title: kerala psc part 558SSLC Examination Questions
Page Link: kerala psc part 558SSLC Examination Questions -
Posted By: anusree
Created at: Saturday 14th of October 2017 06:59:10 PM
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                  S.S.L.C Examination, March-2012

   Time: 1 1/2           കേരളപാഠാവലി                     Total Score: 40
                           മലയാളം 
1 - 4 വരെയുള്ള ചോദ്യങ്ങൾക്ക് 1 സ്കോർ വീതം (4 x 1 = 4)
1.സ്വർണവർണമരയന്നം മഞ്ജനാദമിതു നിർണയമെനിക്കിണങ്ങുമെന്നു തോ� ....etc

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Title: advantages and disadvantage of light alarm circuit with ldr
Page Link: advantages and disadvantage of light alarm circuit with ldr -
Posted By: remo_bonde
Created at: Thursday 05th of October 2017 04:32:22 AM
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advantages and disadvantage of light alarm circuit with ldr

The dominant of street lights, outside lights, a number of indoor home appliances, and so on are typically operated and maintained manually on many occasions. This is not only risky, however additionally leads to wastage of power with the negligence of personnel or uncommon circumstances in controlling these electrical appliances ON and OFF. Hence, we can utilize the light sensor circuit for automatic switch OFF the loads based on daylight s intensity by employing a light sensor. Thi ....etc

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Title: kerala psc part 558 Answer Keys
Page Link: kerala psc part 558 Answer Keys -
Posted By: anusree
Created at: Saturday 14th of October 2017 06:57:33 PM
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Answer Key
1.Ans:-b 
•1936-ൽ ക്ഷേത്രപ്രേവേശന വിളംബരം പുറപ്പെടുവിച്ച രാജാവാണ് ഇദ്ദേഹം.
•ഭൂപണയ ബാങ്ക് തിരുവിതാംകൂർ സർവ്വകലാശാല, കർഷിക കടാശ്വസ നിയമം പാസാക്കൽ ഇവ ആരംഭിച്ചത് ഇദ്ദേഹത്തിന്റെ കാലത്താണ്.
•പോപ്പി� ....etc

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