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Explain why the National Grid includes step-up transformers.

1) increases the voltage (across the cables)
2) decreases the current (through the cables)

therefore reducing energy losses (in cables)

or

increasing efficiency of (electricity / energy) of transmission 

Amelia S. GCSE Maths tutor, A Level Maths tutor, GCSE Further Mathema...

1 year ago

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Amelia S.

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Degree: Mathematics, Business and Finance (Masters) - Exeter University

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