Introduction to Electricity: Atomic Particles

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Questions and Answers

What is the negatively charged particle of an Atom sometimes referred to as?

  • Electron (correct)
  • Proton
  • Ion
  • Neutron

Which particle of an Atom is not electrically charged?

  • Ion
  • Proton
  • Neutron (correct)
  • Electron

What is the term applied to an atom or molecule which is not electrically balanced?

  • Proton
  • Neutron
  • Electron
  • Ion (correct)

Who is the electrical pressure, causing electrons to move through a conductor, named after?

<p>Alessandro Volta (B)</p> Signup and view all the answers

What is the amount of current flow sent by one volt through the resistance of one Ohm?

<p>Ampere (D)</p> Signup and view all the answers

What is electricity defined as in terms of Electrons?

<p>'Electrons in motion' (A)</p> Signup and view all the answers

Who is known as the 'Father of Electricity'?

<p>William Gilbert (C)</p> Signup and view all the answers

What does the term 'Watt' represent in electricity?

<p>Rate of power consumption (A)</p> Signup and view all the answers

In the context of electricity, what does 'Resistance' refer to?

<p>Opposition to current flow (D)</p> Signup and view all the answers

How is electricity described as being discovered?

<p>Accidentally by the ancient Greeks (C)</p> Signup and view all the answers

What is a circuit in electrical terms?

<p>Supply current to light and outlets (C)</p> Signup and view all the answers

In direct current (DC) electricity, what is used to represent friction to current flow?

<p>Resistance (C)</p> Signup and view all the answers

In an electrical circuit, what happens to power loss when operating at increased voltage?

<p>Decreases (C)</p> Signup and view all the answers

For a circuit with higher resistance, what happens to the current?

<p>Decreases (B)</p> Signup and view all the answers

What is the power factor of an electric fan and blower connected to a 240 volts outlet with a power factor of 0.85?

<p>0.85 (A)</p> Signup and view all the answers

What is the power factor of an electric motor with a trademark label of 2 horsepower, 240 volts, and 15 amperes?

<p>0.64 (A)</p> Signup and view all the answers

What is the current flowing through a circuit with a resistance of 5 Ohms connected to a 120 volts supply?

<p>15 A (C)</p> Signup and view all the answers

What is the voltage in a circuit with a resistance of 20 Ohms and a current flow of 12 amperes?

<p>240 V (A)</p> Signup and view all the answers

What is required for an electric current to flow in a circuit?

<p>A source of voltage, closed loop of wiring, electric load, means of opening and closing the circuit (B)</p> Signup and view all the answers

Which factor influences conductor resistance based on the provided text?

<p>Composition of the conductor (A)</p> Signup and view all the answers

What is the direction of flow for Direct Current (DC) electricity?

<p>From negative to positive (D)</p> Signup and view all the answers

What generates Alternating Current (AC) electricity?

<p>Generator (C)</p> Signup and view all the answers

What is the frequency unit used to measure Alternating Current (AC)?

<p>Hertz (Hz) (C)</p> Signup and view all the answers

How does the length of wire affect resistance?

<p>The longer the wire, the higher the resistance (D)</p> Signup and view all the answers

In a parallel circuit, how are the loads connected?

<p>Across the same voltage (B)</p> Signup and view all the answers

What is synonymous with energy in electrical terms?

<p>Fuel (D)</p> Signup and view all the answers

How does voltage behave in a series connection of resistors?

<p>It remains constant throughout (D)</p> Signup and view all the answers

What is the standard wiring arrangement for house connections?

<p>Parallel circuit (D)</p> Signup and view all the answers

Which term refers to the rate at which energy is used?

<p>Power (C)</p> Signup and view all the answers

How can energy be expressed in electrical terms?

<p>Kilowatt-hour (B)</p> Signup and view all the answers

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