Answer to Question #74810 in Electricity and Magnetism for Ayrill

Question

1. In the Ampere-Maxwell’s equation, is it possible that both a conduction current and a
displacement are non-vanishing?

2. What causes electromagnetic radiation?

3. When you touch the indoor antenna on a TV, the reception usually improves. Why?

4. Explain why the reception for cellular phones often becomes poor when used inside a
steel-framed building.

5. Compare sound waves with electromagnetic waves.

Answer 1

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