Qualification > Sciences
AM I CORRECT ???hlp plzzz =)
J.Darren:
THERMISTOR
As the temperature increases, the resistance in the thermistor decreases. It is a definiton, as thermistor is made up of semi-conductors.
The lower part of the circuit gets more share of the resistance (note that this part must NOT be connected to a transistor), more current can then flow through it, thus switching on the lamp.
LDR
As the light intensity decreases, the resistance increases.
The part of the circuit with the LDR gets more share of the resistance (note that this part must be connected to a transistor), more current can then flow through it, thus switching on the lamp.
6394:
--- Quote from: J.Darren on May 24, 2010, 07:59:07 am ---THERMISTOR
As the temperature increases, the resistance in the thermistor decreases. It is a definiton, as thermistor is made up of semi-conductors.
The lower part of the circuit gets more share of the resistance (note that this part must NOT be connected to a transistor), more current can then flow through it, thus switching on the lamp.
LDR
As the light intensity decreases, the resistance increases.
The part of the circuit with the LDR gets more share of the resistance (note that this part must be connected to a transistor), more current can then flow through it, thus switching on the lamp.
--- End quote ---
but it always is connected to the transistor
J.Darren:
My bad, I am referring to the upper / lower part of the circuit instead, the lower part of the circuit is connected to the base of the transistor.
Navigation
[0] Message Index
[*] Previous page
Go to full version