Sensing Flashcards
1
Q
Why is internal resistance useful
A
Limits the amount of current in a short circuit
2
Q
Maximum power is when
A
Resistance equals internal resistance of the source
3
Q
Potential divider equation
A
Vout= (R2 / R1 + R2) x Vin
4
Q
Pd equations
A
Pd= Emf -I x r Pd= Emf x (R / R+ r)
5
Q
r equation
A
r= R(Emf/ Pd - 1)
6
Q
Total resistance in parallel
A
1/total r = 1/r1 + 1/r2
7
Q
Total resistance in series
A
Total r= r1 + r2
