Since the coal-fired power station is a long way from the city, the electricity it produces is sent there at high voltage.
(a)[2]
State two benefits of transmitting electricity at high voltage.
(b)[2]
Explain why black was chosen for the fins.
(c)[3]
Describe the construction and materials used in a simple step-down transformer. You may include a labelled diagram in your response.
Worked solution & mark scheme
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