Powerpoint lecture covering the following in a modern, concise format:
Specification Point 2.4 - Know and use the relationship between power, current and voltage and apply the relationship to the selection of appropriate fuses.
Specification Point 2.5 - Use the relationship between energy transferred, current, voltage and time.
Specification Point 2.6 - Know the difference between mains electricity being alternating current (A.C.) and direct current (D.C.) being supplied by a cell or battery.
Complete set of Chapter 2 Lectures are available.
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