pulsion
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magnet can only repel another magnet. So, ‘X’ is a surer test of magnetism. Identify X.
a) Directive
b) Repulsion
c) Remanence
d) Hysteresis
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- Q6Ampere's law can be used to determine the magnetic field: Ouestion 8AnswerA. Inside a long straight current - carrying conductor B. Only at the ends of a long straight current - carrying conductor C. Both inside and outside a long straight current - carrying conductor D. Outside a long straight current - carrying conductorIn which way do permanent magnets and electromagnets differ? A. Electromagnets can be turned on and off.B. Permanent magnets can only be used in fixed positions.C. Electromagnets can attract other substances besides metals.D. The largest permanent magnets are weaker than the largest electromagnets.
- How can magnetic flux be zero when the magnetic field is not zero? a)All magnetic fields are associated with magnetic monopoles. b)All magnetic fields are associated with magnetic dipoles. c)Unlike the electric field, the magnetic field is constant everywhere. d)You can only enclose one pole of a magnet at a time in a Gaussian surface.8. A charge is moving at an angle of 30° relative to the direction of a magnetic field and experiences a magnetic force of 3.0 x 103 N. If this same charge were to move at the same velocity perpendicular to the same magnetic field what magnetic force will act on it? FL = qvB sintWhat is the meaning of the word "permanent" when used to describe a magnet? a. Magnetism depends on the realignment of domains in the magnetic material. b. Atoms inside the material are themselves tiny magnets. c. Magnetic effects move nearby objects to new positions. d. Magnetism persists independent of other magnetic objects. e. Magnetism is induced by the presence of nearby magnetic objects.