dc circuit Flashcards
1
Q
series circuit
A
current: same
pd: Ve=V1+V2
resistance: Re=R1+R2
2
Q
parallel circuit
A
current: I=I1+I2
pd: same
resistance: 1/Re=1/R1+1/R2
3
Q
potential divider
A
line of resistors connected in series to provide a fraction of the voltage of a source to another part of the circuit
Vout=(R2/R1+R2)Ve
4
Q
rheostat
A
resistance of variable resistance increase, output voltage decrease
max Vout= Vemf
min Vout= more than 0v
5
Q
potentiometer
A
max Vout=Vemf
min Vout= 0v
6
Q
input transducer
A
device that converts non-electrical energy into electrical energy
thermistor- resistance decrease when temp increases
light dependent resistor- resistance decreases when light intensity increases
