Electronic Notes 2

series circuit formula

total resistance = R1 + R2 + R3

series circuit acronym: S-S-S

single patch / same current / sum the resistance (add)

parallel circuit definition

circuit with two or more paths for electricity to flow

parallel circuit acronym: P-V-D

paths multiple / voltage same / current divides branches

voltage brach rule

voltage is the same across every branch

current branch rule

it divides between the branches

total resistance decreases when branches are …

added

if one branch breaks, the other branch …

can still work

formula for 2 resistors

total resistance = (R1 x R2) ÷ (R1 + R2)

current

(I) flow of the electrical charge

voltage

(V) electrical potential difference

resistance

(Ω) opposition to current

current is measured in?

(A) amps

voltage is measured in?

(V) volts

resistance is measured in?

(Ω) ohmns

open circuit

broken path - current can not flow through path

closed circuit

complete path - current can flow

short circuit

unintended low resistance path - causes excessive current

branch

one separate path - in a parallel circuit

ammeter connection

connects in a series

voltmeter

connects in a parallel

ohmmeter

measures resistance power off