AMME1705 Electronics Foundations Week 1: Voltage and Current
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Questions and Answers

What form of energy does a motor convert electrical energy into?

  • Light
  • Heat
  • Potential energy
  • Motion and heat (correct)

Which statement about the flow of electrons is correct?

  • Conventional current is said to flow in the same direction as the net electron flow.
  • Electrons have negative charge and will migrate towards the more positive charge area. (correct)
  • Electrons have negative charge and will migrate towards the more negative charge area.
  • Electrons have positive charge and flow from the more positive to the more negative area.

What is the relationship between resistance and conductance according to the text?

  • Resistance and conductance are unrelated properties of materials.
  • Resistance and conductance are the same thing, measured in Ohms.
  • Resistance and conductance are directly related, with conductance measured in Siemens.
  • Resistance and conductance are inversely related, with conductance measured in Siemens. (correct)

How does the total resistance change when resistors are connected in series?

<p>The total resistance increases, with the high value resistors being dominant. (D)</p> Signup and view all the answers

How does the total resistance change when resistors are connected in parallel?

<p>The total resistance decreases, with the low value resistors being dominant. (A)</p> Signup and view all the answers

What is the relationship between voltage, resistance, and current according to Ohm's law?

<p>Voltage, resistance, and current are all linearly related. (A)</p> Signup and view all the answers

What is the relationship between voltage and potential energy?

<p>Voltage is the potential energy per unit charge. (C)</p> Signup and view all the answers

How can the magnitude of voltage or current be increased?

<p>Both A and C are correct. (A)</p> Signup and view all the answers

What is the primary function of a voltmeter?

<p>To measure the potential difference between two points. (D)</p> Signup and view all the answers

Which of the following is an example of an energy source?

<p>A battery. (D)</p> Signup and view all the answers

What is the purpose of an energy sink in a circuit?

<p>To convert potential energy into another form. (D)</p> Signup and view all the answers

What is the significance of voltage being a relative measurement?

<p>Voltage can only be measured in relation to a reference point. (B)</p> Signup and view all the answers
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