Mains electricity — KCSE Physics
KCSE Physics · 70 practice questions · 4 syllabus objectives
What You'll Learn
Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.
State sources of mains electricity and describe power transmission from generation to consumer
Explain the domestic wiring system including live, neutral, earth wires and fuses
Define the kilowatt hour, determine electrical energy consumption and cost
Select appropriate fuses, calculate current and power for mains appliances
Sample Questions
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List three factors that determine the appropriate fuse rating for an electrical appliance. (3 marks)
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State two factors that determine the cost of electricity consumed in a household. (2 marks)
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State the definition of a kilowatt hour and how it relates to electrical energy consumption. (3 marks)
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Why Practise Mains electricity?
KNEC Aligned
Questions match the KCSE syllabus objectives and exam format exactly.
Detailed Marking Schemes
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