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2W151: Fundamentals of Electricity and Circuits - Quiz 10

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Quiz 10
Joseph Whilden J
Quiz by Joseph Whilden J, updated more than 1 year ago
Joseph Whilden J
Created by Joseph Whilden J over 8 years ago
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Resource summary

Question 1

Question
The negatively charged particles in an atom are called:
Answer
  • Ions
  • Protons
  • Neutrons
  • Electrons

Question 2

Question
The positively charged particles in an atom are called:
Answer
  • Ions
  • Protons
  • Neutrons
  • Electrons

Question 3

Question
the neutrally charged particles in an atom are called:
Answer
  • Ions
  • Protons
  • Neutrons
  • Electrons

Question 4

Question
Which of the following choices correctly reflects basic atomic particle placement in an atom?
Answer
  • Protons in the nucleus with the neutrons and electrons in orbit
  • Neutrons and electrons in the nucleus with the protons in orbit
  • Protons and neutrons in the nucleus with the electron in orbit
  • Protons and electrons in the nucleus with neutrons in orbit

Question 5

Question
An electrically unbalanced atom is called:
Answer
  • An Ion
  • A proton
  • A neutron
  • An electron

Question 6

Question
Magnetism is defined as an invisible force with the ability to do:
Answer
  • Electrical work
  • Pneumatic work
  • Mechanical work
  • Forward and revers biases

Question 7

Question
Haphazard alignment of the individual molecules causes the effects of their magnetic poles to:
Answer
  • Cancel out
  • Become stronger
  • Generate current
  • Create a static charge

Question 8

Question
Magnetic lines of force never
Answer
  • Repel; they attract
  • Attract; they join
  • Bend; they cross
  • Cross; they bend

Question 9

Question
Which of the following substances is an insulator:
Answer
  • Iron
  • Gold
  • Glass
  • Silver

Question 10

Question
What is the unit of measurement for movement of electrons through a conductor?
Answer
  • Volt
  • Amp
  • Watt
  • Ohm

Question 11

Question
What does the term current refer to?
Answer
  • Total resistance present in a circuit
  • Amount of electrical pressure in the circuit
  • Amount of power being transmitted through a conductor in 1 second
  • Quantity of electrons flowing past a given point during 1 second

Question 12

Question
What is the unit of measurement for resistance to current flow?
Answer
  • Volt
  • Watt
  • Amp
  • Ohm

Question 13

Question
What effect will increasing the current have on an electromagnet?
Answer
  • Strengthens the magnetic field
  • Raises the temperature of the coefficient
  • Lowers the temperature of the coefficient
  • Raises the resistance offered by the conductor

Question 14

Question
Which component of a battery generates the negative charge during operation?
Answer
  • Cathode
  • Anode
  • Diode
  • Electrolyte

Question 15

Question
Which component of a battery generates the positive charge during operation?
Answer
  • Cathode
  • Anode
  • Diode
  • Electrolyte

Question 16

Question
The flow of electrons in a battery is always from the:
Answer
  • Cathode to the anode
  • Anode to the cathode
  • Diode to the anode
  • Anode to the diode

Question 17

Question
If a conductor is passed through a magnetic field so that it will pass through the magnetic lines of force, it will generate:
Answer
  • Electrical current
  • Electrical resistance
  • Magnetic resistance
  • Thermal coefficient changes

Question 18

Question
In a generator, the electrons in the conductor nearest the south pole will be drawn towards the side of the coil that is closest to the
Answer
  • Magnetic dipole
  • Source of current
  • North pole of the magnetic field
  • South pole of the magnetic field

Question 19

Question
Static charges tend to remain in the localized area of a contact for long periods in
Answer
  • Resistors
  • Insulators
  • Capacitors
  • Conductors

Question 20

Question
The conductivity of some insulating material is increased by the absorption of
Answer
  • Air under low-humidity conditions
  • Heat under high-humidity conditions
  • Moisture under high-humidity conditions
  • Moisture under low-humidy conditions

Question 21

Question
What electrical component is designed to offer a predetermined amount of opposition to current flow in a circuit?
Answer
  • Filter
  • Diode
  • Capacitor
  • Resistor

Question 22

Question
What is the most common type of resistor used in electronics?
Answer
  • Mica
  • Bakelite
  • Wire-wound
  • Carbon-composite

Question 23

Question
Wire-wound resistors are normally used in circuits where power requirements exceed:
Answer
  • 2 watts
  • 3 watts
  • 4 watts
  • 5 watts

Question 24

Question
Wire-wound resistors are more accurate than carbon-composition resistors because of their
Answer
  • Large size
  • Extreme cost
  • Large current carrying capacity
  • Adjustable wire length capability during manufacture

Question 25

Question
A two-terminal variable resistor is a
Answer
  • Rheostat
  • Ananomiter
  • Potentiometer
  • Tapped resistor

Question 26

Question
A three-temrinal variable resistor is a
Answer
  • Rheostat
  • Fixed resistor
  • Potentiometer
  • Tapped resistor

Question 27

Question
Insulators are substances with tightly bound orbiting electrons held firmly in place by the nucleus.
Answer
  • True
  • False

Question 28

Question
Select which of the following material that make good conductors:
Answer
  • Platinum
  • Plastic
  • Gold
  • Glass
  • Silver
  • Copper

Question 29

Question
Which substance has electrons bound loosely to the nucleus and easily freed by a suitable force?
Answer
  • Conductor
  • Insulator
  • Electrical force
  • Semi-conductor

Question 30

Question
Semi-Conductors are used in solid-state devices; their resistance and conductivity fall between insulators and conductors.
Answer
  • True
  • False

Question 31

Question
What is the unit of measure of electrical pressure?
Answer
  • Amp
  • Current
  • Volt
  • Ohm

Question 32

Question
Chemical batteries generally consist of three parts: an anode, cathode, and electrolyte.
Answer
  • True
  • False

Question 33

Question
When an object gains or loses a large amount of __________________, it develops a "static" charge.
Answer
  • Electrons
  • Ions
  • Protons
  • Neutrons
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