Question
Select the best answer to make each statement true, and place the letter of the answer in the space provided.Magnetic lines of force are known as_____a. induction.c. attracting influences.b. poles.d. flux.
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8. We represent the magnetic fields created by permanent magnets with magnetic field lines. Choose the best answer about magnetic field lines. a. Magnetic field lines are closer together in regions where the magnetic field is stronger. b. Magnetic field lines start on the north end of the magnet and end on the south end of the magnet (i.e. magnetic field lines have definite beginnings and endings). c. Magnetic field lines point in the direction of the magnetic force on a moving, positive charge. d. Choices a), b), and c) are all true. e. Only choices b) and c) are true.
Which of the following statements is/are true as it relates to magnetism? Select as many options as you deem correct. Note: Selecting an incorrect option may incur a penalty of -10% to -20% of the marks for each question, so be careful with the options you select. a. Only 2 recorded observations suggest that a magnetic North Pole can exist distinct and separate from a corresponding South Pole. b. Magnetic field lines can cross each other, but this is only the case when a strong electric field is in proximity to the magnetic fields in question c. The same number of magnetic field lines that originate from a magnetic pole must also terminate on the complementary pole of the magnet. d. Continuous division of a magnet produces a smaller magnet with each fragment having two North Poles. e. External to a magnet, its field lines originate at the North pole but terminates at its South pole.
(12%) Problem 7: Please answer the following questions about magnetic fields. Part (a) Which of the following statements about magnetic fields are true? Magnetic field lines point in towards the north pole of a magnet. Magnetic field lines point outward from the south pole of a magnet. There are no magnetic field lines outside the magnet. There are no magnetic field lines unless iron filings are present. Part (b) What is an acceptable ending to the following sentence: "Magnetic field lines..." Part (c) Which of the following arrangements produces an attractive force?
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