28. Magnetic Fields and Forces
Magnets and Magnetic Fields
- Multiple ChoiceIn the context of magnets and magnetic fields, all of the following can produce a magnetic field except which one?
- Multiple Choice
When two bar magnets are placed with like poles facing each other so that they repel, what is the general pattern of the magnetic field lines between the magnets?
34views - Multiple Choice
Which of the following statements is true about a field?
40views - Multiple ChoiceFor a typical bar magnet, where is the magnetic force (and field strength) the strongest?
- Multiple ChoiceWhich pair correctly describes two observable effects of Earth’s magnetic field?
- Multiple Choice
Which of the following statements about the creation of magnetic fields is correct?
27views - Multiple Choice
In a diagram showing a bar magnet with magnetic field lines, which of the dashed boxes – represents the position of the north magnetic pole?
43views - Multiple ChoiceIn the context of magnets and magnetic fields, what is another name for magnetic lines of force?
- Multiple ChoiceWhich statement correctly describes magnetic field lines?
- Multiple Choice
When a positively charged particle moves through a uniform magnetic field, what determines the direction of its motion due to the magnetic force ()?
35views - Multiple Choice
At point D near a straight current-carrying wire, what is the direction of the magnetic field at point D?
32views - Multiple Choice
Which of the following factors can affect the strength of a magnetic field produced by a current-carrying wire?
33views - Multiple ChoiceWhich function is performed by Earth’s magnetic field?
- Multiple ChoiceWhat is the primary source of Earth’s magnetic field?
- Multiple Choice
Which of the following best describes a magnetic field?
32views