Introduction to Electromagnetism

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Questions and Answers

What is the relationship between electricity and magnetism?

  • They are completely unrelated forces
  • Magnetism causes electricity
  • Electricity causes magnetism
  • They are both part of the electromagnetic force (correct)

Who provided the first reproducible observation of a relationship between electricity and magnetism?

  • Nikola Tesla
  • Hans Christian Oersted (correct)
  • Michael Faraday
  • Thomas Edison

What do permanent magnets have that allows them to generate a magnetic field?

  • Internal structure of the material (correct)
  • Electric current
  • Radio waves
  • Light waves

What are the two poles of a magnet called?

<p>North and south poles (D)</p> Signup and view all the answers

What is an electromagnet made of?

<p>Copper wire (A)</p> Signup and view all the answers

Where is the magnetic field generated in relation to a moving electric charge?

<p>Around the charge (D)</p> Signup and view all the answers

What is the region around a magnet or a moving electric charge within which the force of magnetism acts called?

<p>Magnetic field (C)</p> Signup and view all the answers

Which of the following statements about electric and magnetic fields is true?

<p>Electric field lines form open loops, while magnetic field lines form closed loops (A)</p> Signup and view all the answers

What happens to iron filings when placed in a magnetic field?

<p>They point in the direction of magnetic field lines (A)</p> Signup and view all the answers

Which of the following statements about magnetic field lines is correct?

<p>Magnetic field lines emerge from the South Pole and merge at the North Pole (C)</p> Signup and view all the answers

In which direction does a small compass placed in a magnetic field point?

<p>In the direction of the magnetic field line (B)</p> Signup and view all the answers

What is true about the behavior of magnetic field lines inside a magnet?

<p>They are continuous loops within the magnet (A)</p> Signup and view all the answers

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