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Quiz von Joseph Whilden J, aktualisiert more than 1 year ago
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Erstellt von Joseph Whilden J
vor etwa 8 Jahre
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Frage 1
Frage
The negatively charged particles in an atom are called:
Antworten
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Ions
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Protons
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Neutrons
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Electrons
Frage 2
Frage
The positively charged particles in an atom are called:
Antworten
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Ions
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Protons
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Neutrons
-
Electrons
Frage 3
Frage
the neutrally charged particles in an atom are called:
Antworten
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Ions
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Protons
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Neutrons
-
Electrons
Frage 4
Frage
Which of the following choices correctly reflects basic atomic particle placement in an atom?
Antworten
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Protons in the nucleus with the neutrons and electrons in orbit
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Neutrons and electrons in the nucleus with the protons in orbit
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Protons and neutrons in the nucleus with the electron in orbit
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Protons and electrons in the nucleus with neutrons in orbit
Frage 5
Frage
An electrically unbalanced atom is called:
Antworten
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An Ion
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A proton
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A neutron
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An electron
Frage 6
Frage
Magnetism is defined as an invisible force with the ability to do:
Antworten
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Electrical work
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Pneumatic work
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Mechanical work
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Forward and revers biases
Frage 7
Frage
Haphazard alignment of the individual molecules causes the effects of their magnetic poles to:
Antworten
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Cancel out
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Become stronger
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Generate current
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Create a static charge
Frage 8
Frage
Magnetic lines of force never
Antworten
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Repel; they attract
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Attract; they join
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Bend; they cross
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Cross; they bend
Frage 9
Frage
Which of the following substances is an insulator:
Antworten
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Iron
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Gold
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Glass
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Silver
Frage 10
Frage
What is the unit of measurement for movement of electrons through a conductor?
Antworten
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Volt
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Amp
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Watt
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Ohm
Frage 11
Frage
What does the term current refer to?
Antworten
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Total resistance present in a circuit
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Amount of electrical pressure in the circuit
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Amount of power being transmitted through a conductor in 1 second
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Quantity of electrons flowing past a given point during 1 second
Frage 12
Frage
What is the unit of measurement for resistance to current flow?
Antworten
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Volt
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Watt
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Amp
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Ohm
Frage 13
Frage
What effect will increasing the current have on an electromagnet?
Antworten
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Strengthens the magnetic field
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Raises the temperature of the coefficient
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Lowers the temperature of the coefficient
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Raises the resistance offered by the conductor
Frage 14
Frage
Which component of a battery generates the negative charge during operation?
Antworten
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Cathode
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Anode
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Diode
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Electrolyte
Frage 15
Frage
Which component of a battery generates the positive charge during operation?
Antworten
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Cathode
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Anode
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Diode
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Electrolyte
Frage 16
Frage
The flow of electrons in a battery is always from the:
Antworten
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Cathode to the anode
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Anode to the cathode
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Diode to the anode
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Anode to the diode
Frage 17
Frage
If a conductor is passed through a magnetic field so that it will pass through the magnetic lines of force, it will generate:
Antworten
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Electrical current
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Electrical resistance
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Magnetic resistance
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Thermal coefficient changes
Frage 18
Frage
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
Antworten
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Magnetic dipole
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Source of current
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North pole of the magnetic field
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South pole of the magnetic field
Frage 19
Frage
Static charges tend to remain in the localized area of a contact for long periods in
Antworten
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Resistors
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Insulators
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Capacitors
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Conductors
Frage 20
Frage
The conductivity of some insulating material is increased by the absorption of
Antworten
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Air under low-humidity conditions
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Heat under high-humidity conditions
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Moisture under high-humidity conditions
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Moisture under low-humidy conditions
Frage 21
Frage
What electrical component is designed to offer a predetermined amount of opposition to current flow in a circuit?
Antworten
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Filter
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Diode
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Capacitor
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Resistor
Frage 22
Frage
What is the most common type of resistor used in electronics?
Antworten
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Mica
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Bakelite
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Wire-wound
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Carbon-composite
Frage 23
Frage
Wire-wound resistors are normally used in circuits where power requirements exceed:
Antworten
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2 watts
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3 watts
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4 watts
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5 watts
Frage 24
Frage
Wire-wound resistors are more accurate than carbon-composition resistors because of their
Antworten
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Large size
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Extreme cost
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Large current carrying capacity
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Adjustable wire length capability during manufacture
Frage 25
Frage
A two-terminal variable resistor is a
Antworten
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Rheostat
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Ananomiter
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Potentiometer
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Tapped resistor
Frage 26
Frage
A three-temrinal variable resistor is a
Antworten
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Rheostat
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Fixed resistor
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Potentiometer
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Tapped resistor
Frage 27
Frage
Insulators are substances with tightly bound orbiting electrons held firmly in place by the nucleus.
Antworten
- True
- False
Frage 28
Frage
Select which of the following material that make good conductors:
Antworten
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Platinum
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Plastic
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Gold
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Glass
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Silver
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Copper
Frage 29
Frage
Which substance has electrons bound loosely to the nucleus and easily freed by a suitable force?
Antworten
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Conductor
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Insulator
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Electrical force
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Semi-conductor
Frage 30
Frage
Semi-Conductors are used in solid-state devices; their resistance and conductivity fall between insulators and conductors.
Antworten
- True
- False
Frage 31
Frage
What is the unit of measure of electrical pressure?
Antworten
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Amp
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Current
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Volt
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Ohm
Frage 32
Frage
Chemical batteries generally consist of three parts: an anode, cathode, and electrolyte.
Antworten
- True
- False
Frage 33
Frage
When an object gains or loses a large amount of __________________, it develops a "static" charge.
Antworten
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Electrons
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Ions
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Protons
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Neutrons
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