ELEMENTS OF
ELECTRICAL
ENGINEERING
DC CIRCUITS
Shreya Paid
, Elements
- \
Active Pavone
Produce
enesefy consume/ store eneeisy
current leaves the terminal current enters tvetelnrinal
IN
Eg sources
Eg :L C R
:
, ,
Network : connection of electrical elements
Circuit : Electrical network comprising of at least one source and /sink , having a closed path
for current flow .
current :
Amp or coulumblsec
potential difference : Volt V3 or Joule / coulomb .
power : watts @ ) or volt * amp .
resistance : ohms @) or volt/ amp
ifs
.
-
o resistivity
:
ohm -
m
conductivity :
Siemens
OHM 'S LAW :
VXI
f- IR Ris constant of proportionality .
CR -
resistance]
A- s -
resistivity tp=G G- conductivity .
KIRCHOFF 'S LAWS :
1. Cueeent law :
sum
of cuhhonts is zero at node
of electric network
every an .
ER)
aultenb is to
sum
of incoming equal sum
of outgoing currents .
It
>
7
£4
•
I,
eIzTI3= 24
127 F
23
ELECTRICAL
ENGINEERING
DC CIRCUITS
Shreya Paid
, Elements
- \
Active Pavone
Produce
enesefy consume/ store eneeisy
current leaves the terminal current enters tvetelnrinal
IN
Eg sources
Eg :L C R
:
, ,
Network : connection of electrical elements
Circuit : Electrical network comprising of at least one source and /sink , having a closed path
for current flow .
current :
Amp or coulumblsec
potential difference : Volt V3 or Joule / coulomb .
power : watts @ ) or volt * amp .
resistance : ohms @) or volt/ amp
ifs
.
-
o resistivity
:
ohm -
m
conductivity :
Siemens
OHM 'S LAW :
VXI
f- IR Ris constant of proportionality .
CR -
resistance]
A- s -
resistivity tp=G G- conductivity .
KIRCHOFF 'S LAWS :
1. Cueeent law :
sum
of cuhhonts is zero at node
of electric network
every an .
ER)
aultenb is to
sum
of incoming equal sum
of outgoing currents .
It
>
7
£4
•
I,
eIzTI3= 24
127 F
23
