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IGCSE PHYSICS

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@d!_†oX!©:
hey guys!!
whats the difference between a fixed resistor and a preset resistor??

nid404:

--- Quote from: @d!_†oX!© on November 07, 2009, 11:39:52 am ---hey guys!!
whats the difference between a fixed resistor and a preset resistor??

--- End quote ---

fixed resistors r fixed...lol

preset resistor is a type of variable resistor....u needn't know abt it for the igs

@d!_†oX!©:
ohhhh man!!!
y is it that i always end up asking question that are not needed in my syllabus??!!!!!
anyways cud u still expand a bit more nid??!!!

nid404:
   
Preset resistors are used in circuits when it is necessary to alter the resistance. Dark/light and temperature sensors usually have these components as the preset resistor allows the circuit to be made more or less sensitive

@d!_†oX!©:
ohhhhh....as in when the use of a potential divider circuit s used??!!!
thnxx..got it....perhaps it is used with transistors and all....
soo is it a part of the A level curriculum??

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