resistance Flashcards
what is resistance
its is the measure if the opposition to the flow of charge through a conductor
what is resistance measured in
ohms
what does a reistor do to potential difference
its coverts it to other forms
state ohms law
the current through the conductor s directly proportional to the potential difference across its ends, provided the temperature remains constant
how do u calculate current , voltage , resistance
I = v/R
V = I x R
R = v/I
list and explain the factors affecting resistance
temperature - the HIGHER the temp the GREATER the resistance of a metallic conductor.
semi conductor - HIGHER temp the LOWER the resistance
length of conductor - the LONGER the conductor the GREATER the resistance
width of conductor - THICKER the conductor the LOWER the resistance
type of material