Resistance in series and parallel - Mrs Physics
Resistance in series and parallel
Resistance is measured in OHMS (()
Resistance opposes the flow of electrons or charge.
Resistance in series
To find the total resistance in series we add up all the individual resistances
RT =R1+R2+R3
For example what is the total of a 5( , 7( and 15( resistor in series?
R1=5(
R2 =7(
R3=15(
RT =R1+R2+R3
RT =5+7+15=27(
Resistance in Parallel
Adding resistors in parallel reduces the total resistance of the circuit (It is worth noting that the total resistance will be lower than the biggest resistor, use this for estimations!)
The formula looks quite complicated and causes problems but with modern calculators it becomes an easy sum to work out.
[pic]
For example what is the total of a 5( , 7( and 15( resistor in parallel?
R1=5(
R2 =7(
R3=15(
[pic]
On the calculator
[pic]
Find the total resistance of the following resistors in parallel. For each one draw the circuit and summarise the question before starting.
a) 6 ( + 4 (
b) 12 ( + 8 (
c) 500 ( + 200 (
d) 10k( + 100k(
e) 5 x 15 (
f) 25 ( + 100 ( + 75 (
[pic]
-----------------------
Y
Find the total resistance of this network
8 Ω
2 Ω
5 Ω
4 Ω
4 Ω
4 Ω
4 Ω
2 Ω
3 Ω
3 Ω
3 Ω
3 Ω
3 Ω
3 Ω
6 Ω
6 Ω
6 Ω
14 Ω
20 Ω
28 Ω
ࠢࡃࡄࡻࣰࣣ࣭ࣤࣧࣨ࣪࣫औकङचडढषसहऺ़ऽिीृॄॆेॊोॎॏ॒॓ॕॖक़ग़ज़ड़१२३४६ঃਿસહ18 Ω
18 Ω
18 Ω
12 Ω
24 Ω
48 Ω
48 Ω
X
................
................
In order to avoid copyright disputes, this page is only a partial summary.
To fulfill the demand for quickly locating and searching documents.
It is intelligent file search solution for home and business.
Related download
- resistance in series and parallel mrs physics
- resistors connected in series and in parallel
- series and parallel circuit worksheet
- teaching advanced physics
- total resistance in series and parallel circuits
- circuits worksheet
- chapter 20 currents and circuits
- series and parallel resistors
- tap 114 2 resistors in series and parallel
- lesson b4 3