Formula of series circuit
i1=i2=i3
v1+v2
parallel circuit
i1=i2+i3
v1=v2=v3
formula of resistance
r=v/i
Formula of voltage output
( r2/r1+r2)xV
What is a potentiometer and its uses
variable potential divider
makes use of voltage drop across resistor to divide voltage
what is dc circuit
current flow in one direction and voltage is low
What is ac circuit
alternating current
What are transducers
convert energy from one form to another
examples of transducers
thermosister light dependant resistor
function of ldr
as light intensity inc, res decreases