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Powered up! In a continuation of the series on DVD players, the second video explores the switch mode power supply unit. It also looks at the difference between AC and DC.
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Instructional Ideas
- Have the class research the difference between linear and switch mode power supplies
- Provide a diagram of the power supply for pupils to label while watching the video
Classroom Considerations
- Learners should be aware of basic terminology related to electric current and electronics
Pros
- Includes detailed descriptions
- Well-paced video holds viewers' attention
Cons
- Closed captioning does not work