AQA GCSE Physics - Efficiency

This video looks at how to calculate the efficiency of various devices using the equation.

The videos are planned and edited by Science teacher, Kishore Vyas.

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Revision guides recommended by me (Amazon Affiliate links):

AQA GCSE Revision guides for Triple Science - all higher tier - up to grade 9

AQA GCSE Revision guides for Combined Science (Trilogy) - all higher tier - up to grade 9