NAPAKA
GANDA MO!
Question 2
Fill in the blanks Points: 2
What is the probability of drawing a number less than 3 when a die is rolled?
0.3333 `
Question 3
Fill in the blanks Points: 2
A bowl contains 15 red beads, 30 white beads, 20 blue beads, and 7 blac
A bowl contains 15 red beads, 30 white beads, 20 blue beads, and 7 black beads. If one of the
beads is drawn at random, what is the probabilities that it will be black?
0.0972

A secretary has three telephones on her desk, each with a different number, a
1.) If the probabilities are, respectively, 0.92, 0.33 and 0.29 that a person vacationing in Boracay ,
will visit Palawan, or both, what is the probability that a person vacationing there will visit at
least one of the two areas? 0.96
2.) A box contains
What Are the Hazards of Electricity?
The primary hazards of Electricity and its use are:
 Shock
Electric currents travel in closed circuits through some kind of conducting
material. You get a shock when some part of your body becomes part of an
electric
In a certain city district, the need for money to buy drugs is given as the reason for 65% of all
thefts. What is the probability that exactly 2 of the next 4 theft cases reported in this district
resulted from the need for money to buy drugs?
0.311
A coi
On the average, 10 people per hour use an express teller machine situated inside a commercial
complex. If a person just used an ATM machine, what is the probability that the next person will
use the machine
a. in between 5 to 8 minutes?
b. within 4 to 7 m
Zener Regulator
Zener Diode Equivalent Circuits
Basic Zener Regulator
Case 1: Fixed Vi and RL
Steps:
Determine the state of the Zener diode by
removing it from the network and calculating the
voltage across the resulting open circuit.
V = V L = R LV i / R
RECTIFIERS
Rectifier Circuit converts ac voltage into dc
voltage
Halfwave
Fullwave
DC Power Supply operates from an ac voltage
source
 an essential part of each electronic
system from the simplest to the most complex
HalfWave Rectifier halfwave
rect
CLIPPERS AND CLAMPERS
Clippers
also called limiter circuits
have the ability to clipoff a portion of the
input signal without distorting the remaining
part of the alternating waveform
series/ parallel clippers
positive/ negative clippers
Series Diode
Prelims Lecture 1
Atom
smallest particle of an element that retains the
characteristics of that element
Two simple atoms
Atomic Number
equals the number of protons in the nucleus
same as the number of electrons in an
electrically balanced (neutral) atom
E
Lesson 2
Ideal Diode
any device or system that has ideal
characteristics perfect in every way
provides a basis for comparison, and it reveals
where improvements can still be made
The characteristic of an ideal diode are those of
a switch that can conduc
Zener Regulator
Zener Diode Equivalent Circuits
Basic Zener Regulator
Case 1: Fixed Vi and RL
Steps:
Determine the state of the Zener diode by removing it
from the network and calculating the voltage across
the resulting open circuit.
V = VL = RLVi / R +
RECTIFIERS
Rectifier Circuit converts ac voltage into dc voltage
Halfwave
Fullwave
DC Power Supply operates from an ac voltage source
 an essential part of each electronic system
from the simplest to the most complex
HalfWave Rectifier halfwave
rec
CLIPPERS AND CLAMPERS
Clippers
also called limiter circuits
have the ability to clipoff a portion of the
input signal without distorting the remaining part
of the alternating waveform
series/ parallel clippers
positive/ negative clippers
Series Diode Cli
Chapter 1
9. To get the Thevenin voltage, you have to
1. An ideal voltage source has
a. Short the load resistor
b. Open the load resistor
c. Short the voltage source
d. Open the voltage source
b. Open the load resistor
a. Zero internal resistance
b. Infin