Objectives

• After studying this unit, you should be able to
• describe the structure of an atom.
• identify atoms with a positive charge and atoms with a negative charge.
• explain the difference between conductors and insulators.
• describe how magnetism is used to produce electricity.
• state the differences between alternating current and direct current.
• list the units of measurement for electricity.
• explain the differences between series and parallel circuits.
• state three forms of Ohm’s law.
• state the formula for determining electrical power.
• describe a solenoid.
• explain inductance.
• describe the construction of a transformer and how voltage is induced in a secondary circuit.
• describe how a capacitor works.
• describe a sine wave.
• state the reasons for using proper wire sizes.
• describe the physical characteristics and the function of several semiconductors.
• describe procedures for making electrical measurements.

Next: Advance to the Learning Center Dashboard and complete the lessons.