Bộ 20 đề luyện thi Chuyên Anh năm 2023 có đáp án (Đề 95)

What did James Prescott Joule’s theory state? A. Light was possible only with electricity  B. Gas light was impractical compared to electrical light C. Electricity passed through a conducto

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What did James Prescott Joule’s theory state?

Light was possible only with electricity

Gas light was impractical compared to electrical light

Electricity passed through a conductor would produce light

Carbonized cotton thread filament was the best means to produce light

Giải thích

Đáp án: C