Qualification > Sciences
need help with Reed relay, Reed switch and LDR
SauD~:
--- Quote from: Abod on March 23, 2011, 10:07:00 pm ---i donno
there are 2 circuits
During night time this circuit is drawn
_____________________________ _________street lamp________
| | | | |
| | Relay coil Relay(NC relay) |
| resistor | | |
____ |____________| |__________240v___________|
_ 12v |
| LDR
|_______________|
--- End quote ---
Oh, Sorry sorry
You are correct :-[
Yes, normally closed switch works in it
I am sorry.
NotAbod:
no problem bro ;)
we didnt get any questions about LDR and relays today, it was phyiscs mock exam.
i was so worried about LDR, Relays and transistors xd xd
SauD~:
--- Quote from: Abod on March 24, 2011, 03:14:46 pm ---no problem bro ;)
we didnt get any questions about LDR and relays today, it was phyiscs mock exam.
i was so worried about LDR, Relays and transistors xd xd
--- End quote ---
i had physics on Wednesday, mocks :P
Gave it without studying because i was sck >:(
i had a transistor question :-[
NotAbod:
actually i have no idea about transistors.
i dont have a good physics textbook to study about transistors from it :(
SauD~:
--- Quote from: Abod on March 24, 2011, 03:56:39 pm ---actually i have no idea about transistors.
i dont have a good physics textbook to study about transistors from it :(
--- End quote ---
Study notes and check a book named "Physics for you" by Keith Johnson. Its a good book :)
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