Lesson: Chapter 10 — Power and energy in electrical appliances

10.3. Efficiency and saving energy 4 of 4 Reset answers

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Question 4

How does an induction cooker heat a pan?

A With a glowing coil B With a gas flame C With microwaves inside the food D A changing magnetic field makes heat in the base of the pan

The right answer is the one marked above.

A changing magnetic field makes heat in the base of the pan. Heating only the pan wastes little heat.

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