Joseph Whilden J
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Quiz 10

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Joseph Whilden J
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2W151: Fundamentals of Electricity and Circuits - Quiz 10

Question 1 of 33

1

The negatively charged particles in an atom are called:

Select one of the following:

  • Ions

  • Protons

  • Neutrons

  • Electrons

Explanation

Question 2 of 33

1

The positively charged particles in an atom are called:

Select one of the following:

  • Ions

  • Protons

  • Neutrons

  • Electrons

Explanation

Question 3 of 33

1

the neutrally charged particles in an atom are called:

Select one of the following:

  • Ions

  • Protons

  • Neutrons

  • Electrons

Explanation

Question 4 of 33

1

Which of the following choices correctly reflects basic atomic particle placement in an atom?

Select one of the following:

  • 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

Explanation

Question 5 of 33

1

An electrically unbalanced atom is called:

Select one of the following:

  • An Ion

  • A proton

  • A neutron

  • An electron

Explanation

Question 6 of 33

1

Magnetism is defined as an invisible force with the ability to do:

Select one of the following:

  • Electrical work

  • Pneumatic work

  • Mechanical work

  • Forward and revers biases

Explanation

Question 7 of 33

1

Haphazard alignment of the individual molecules causes the effects of their magnetic poles to:

Select one of the following:

  • Cancel out

  • Become stronger

  • Generate current

  • Create a static charge

Explanation

Question 8 of 33

1

Magnetic lines of force never

Select one of the following:

  • Repel; they attract

  • Attract; they join

  • Bend; they cross

  • Cross; they bend

Explanation

Question 9 of 33

1

Which of the following substances is an insulator:

Select one of the following:

  • Iron

  • Gold

  • Glass

  • Silver

Explanation

Question 10 of 33

1

What is the unit of measurement for movement of electrons through a conductor?

Select one of the following:

  • Volt

  • Amp

  • Watt

  • Ohm

Explanation

Question 11 of 33

1

What does the term current refer to?

Select one of the following:

  • 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

Explanation

Question 12 of 33

1

What is the unit of measurement for resistance to current flow?

Select one of the following:

  • Volt

  • Watt

  • Amp

  • Ohm

Explanation

Question 13 of 33

1

What effect will increasing the current have on an electromagnet?

Select one of the following:

  • Strengthens the magnetic field

  • Raises the temperature of the coefficient

  • Lowers the temperature of the coefficient

  • Raises the resistance offered by the conductor

Explanation

Question 14 of 33

1

Which component of a battery generates the negative charge during operation?

Select one of the following:

  • Cathode

  • Anode

  • Diode

  • Electrolyte

Explanation

Question 15 of 33

1

Which component of a battery generates the positive charge during operation?

Select one of the following:

  • Cathode

  • Anode

  • Diode

  • Electrolyte

Explanation

Question 16 of 33

1

The flow of electrons in a battery is always from the:

Select one of the following:

  • Cathode to the anode

  • Anode to the cathode

  • Diode to the anode

  • Anode to the diode

Explanation

Question 17 of 33

1

If a conductor is passed through a magnetic field so that it will pass through the magnetic lines of force, it will generate:

Select one of the following:

  • Electrical current

  • Electrical resistance

  • Magnetic resistance

  • Thermal coefficient changes

Explanation

Question 18 of 33

1

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

Select one of the following:

  • Magnetic dipole

  • Source of current

  • North pole of the magnetic field

  • South pole of the magnetic field

Explanation

Question 19 of 33

1

Static charges tend to remain in the localized area of a contact for long periods in

Select one of the following:

  • Resistors

  • Insulators

  • Capacitors

  • Conductors

Explanation

Question 20 of 33

1

The conductivity of some insulating material is increased by the absorption of

Select one of the following:

  • Air under low-humidity conditions

  • Heat under high-humidity conditions

  • Moisture under high-humidity conditions

  • Moisture under low-humidy conditions

Explanation

Question 21 of 33

1

What electrical component is designed to offer a predetermined amount of opposition to current flow in a circuit?

Select one of the following:

  • Filter

  • Diode

  • Capacitor

  • Resistor

Explanation

Question 22 of 33

1

What is the most common type of resistor used in electronics?

Select one of the following:

  • Mica

  • Bakelite

  • Wire-wound

  • Carbon-composite

Explanation

Question 23 of 33

1

Wire-wound resistors are normally used in circuits where power requirements exceed:

Select one of the following:

  • 2 watts

  • 3 watts

  • 4 watts

  • 5 watts

Explanation

Question 24 of 33

1

Wire-wound resistors are more accurate than carbon-composition resistors because of their

Select one of the following:

  • Large size

  • Extreme cost

  • Large current carrying capacity

  • Adjustable wire length capability during manufacture

Explanation

Question 25 of 33

1

A two-terminal variable resistor is a

Select one of the following:

  • Rheostat

  • Ananomiter

  • Potentiometer

  • Tapped resistor

Explanation

Question 26 of 33

1

A three-temrinal variable resistor is a

Select one of the following:

  • Rheostat

  • Fixed resistor

  • Potentiometer

  • Tapped resistor

Explanation

Question 27 of 33

1

Insulators are substances with tightly bound orbiting electrons held firmly in place by the nucleus.

Select one of the following:

  • True
  • False

Explanation

Question 28 of 33

1

Select which of the following material that make good conductors:

Select one or more of the following:

  • Platinum

  • Plastic

  • Gold

  • Glass

  • Silver

  • Copper

Explanation

Question 29 of 33

1

Which substance has electrons bound loosely to the nucleus and easily freed by a suitable force?

Select one of the following:

  • Conductor

  • Insulator

  • Electrical force

  • Semi-conductor

Explanation

Question 30 of 33

1

Semi-Conductors are used in solid-state devices; their resistance and conductivity fall between insulators and conductors.

Select one of the following:

  • True
  • False

Explanation

Question 31 of 33

1

What is the unit of measure of electrical pressure?

Select one of the following:

  • Amp

  • Current

  • Volt

  • Ohm

Explanation

Question 32 of 33

1

Chemical batteries generally consist of three parts: an anode, cathode, and electrolyte.

Select one of the following:

  • True
  • False

Explanation

Question 33 of 33

1

When an object gains or loses a large amount of __________________, it develops a "static" charge.

Select one of the following:

  • Electrons

  • Ions

  • Protons

  • Neutrons

Explanation

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