EE24 Basic Electrical Engineering
Assignment 2
Due: January 21, 2014 at 3:00pm NW201
1. Find the area in CM of a circular wire with a diameter of 0.5cm.
2. A copper bar has length 2m, height 0.1m and width 0.1m. Find its resistance
between two a) square f
EE24 Basic Electrical Engineering
Assignment 4
Due: February 4, 2014 at 3:00pm NW201
1. Design a voltmeter with the following ranges: a) 0 50V; b) 0 100V. Assume
Rm = 5k and the f.s.d. is 2mA.
2. Design an ammeter with the following ranges: a) 0 1A; b) 0
EE24 Basic Electrical Engineering
Assignment 3
Due: January 28, 2014 at 3:00pm NW201
1. Find Rab and i.
2. Determine the number of branches, nodes, loops and independent loops in the
circuit below.
3. Calculate v and ix in the circuit below.
4. Find I and
EE24 Basic Electrical Engineering
Assignment 5
Due: February 11, 2014 at 3:00pm NW201
1. Using a) branch current method; b) mesh analysis; c) nodal analysis, find V 1, V2
V3 and the current flowing in the 30V source.
EE24 Basic Electrical Engineering
Assignment 8
Due: March 6, 2014 at 3:00pm NW201
1. Find Vab using source transformation.
2. Find the Thevenin equivalent circuit for the network external to the resistor R.
Find also the current flowing through R if R is
LECTURE 3
Finding the equivalent resistance between two terminals:
Find the Req between
a)ab
b)ac and
c)bc
Application of voltage and current dividers:
Wye to Delta applications:
Sign convention:
Entering current positive
Leaving current negative
Illust
LECTURE 1
The International System of Units
(SI)
symbol: q (for time-varying) unit : Coulomb (C)
Q (for constant charge)
Proton positive
Electron negative
Neutron neutral
1C = 6.24 x 1018 e- or p+
Electric Current is the flow of electrons.
- is the time r
EE24 Basic Electrical Engineering
Assignment 1
Due: January 14, 2014 at 3:00pm NW405
1. A 5A current passes a given point for 10 minutes. How many electrons passed
the given point?
2. Convert the following:
a) 50,000 mA to MA
b) 0.06 kV to mV
c) 1,500,000
LECTURE 2
Review of V, I, and R
Voltage is the amount of energy per charge available to
move electrons from one point to another in a circuit.
Current is the rate of charge flow and is measured in
amperes.
Resistance is the opposition to current and is me
RISER DIAGRAM
8 mm^2 THHW WIRE
M
MERALCO METER
Meralco 230 V
60 HZ 3- wires
200A MAINTENANCE
DISCONNECT SWITCH
20 AT
20 AT
LIGHTING
LIGHTING
20 AT
20 AT
SMALL APPLIANCES
SMALL APPLIANCES
CONVENIENCE OUTLET
CONVENIENCE OUTLET
20 AT
20 AT
SMALL APPLIANCES
W
1.
For the circuit shown, find VCE and VAG.
6
A
8
B
E
10 V
20 V
5
5
D
F
9
C
H
40 V
7
G
6.
Convert the delta systems ac-ao-co and bo-od-bd
the current Ief.
80
120
e
30
85
o
10
0
Ief
45
400 V
c
60
a
90
b
d
f
and find (a) the total resistance and (b)
5.
WASH ROOM
11m
KITCHEN
BEDROOM 2
5.0 m
DINING ROOM
BATHROOM
12 m
2.0 m
LIVING ROOM
BEDROOM 1
5.0 m
PORCH
5.5 m
5.5 m
FLOOR PLAN
5.5 m
5.5 m
s
5m
S
3
S
S
2m
12 m
S
5m
S2
2
1
11 m
LIGHTING LAYOUT
5.5 m
5.5 m
WM
ACU
5m
2m
12 m
ACU
wp
11 m
POWER LAYOUT
5m
RISE
Sign Language to Text or Speech using Real Time
Hand Gesture Recognition System
Jay Moore A. Labuac
School of Electrical, Electronics, and Computer Engineering, Mapua Institute of Technology
Muralla St., Intramuros, Manila, Philippines
[email protected]
LECTURE 6
Linearity is the property of an element
describing a linear relationship between
cause and effect
- it is a combination of homogeneity
and additivity property
Homogeneity states that if the input
(excitation) is multiplied by a constant,
then th
LECTURE 4
Applications:
Voltmeter instrument used for measuring
potential difference between two points. It
should have high resistance (ideally
infinite) and connected in parallel with the
part of the circuit whose voltage is
required.
Ammeter instrument
LECTURE 7
Thevenins theorem
- developed in 1883 by M. Leon Thevenin,
a French telegraph engineer
Sample problem:
Nortons theorem
- Proposed by an American engineer E. L.
Norton in 1926.
Sample problem:
Maximum power transfer
Sample problem:
Seatwork:
Computation for Excess
Power/ Excess Current
Contents
How to get the Rated Amps of equipment
How to get the Total Rated Current (in Amperes)
Total Excess Current Rating
Total Excess Billing
How to get the Rated Amps of equipment
Using name plate (Input C