QUESTION 1. Which object is least likely to be used in an investigation of the relationship between magnetism and electric charge? a. Generator b. Simple motor c. Electromagnet d. Simple machine
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A: A magnetic field exerts force on a moving charge
Q: 5. A rectangular loop of wire that is 35 cm wide and 15 cm long is placed in a region where the…
A: The magnetic flus through the loop will be Flux = B×A×cosθ where B is magnetic field and A is area…
Q: 4. As a charged particle enters a magnetic field, the object will undergo circular motion in that…
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Q: Which of the following statements best describes Oersted’s Principle ? a. A current carrying…
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Q: How many turns of a coil are necessary to produce a 0.25-T magnetic field inside a 50-cm-long…
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A: This question can be solved by using the various concepts of physics.
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- 29. You can change the magnetic flux through a given surface by a. changing the magnetic field. b. changing the surface area over which the magnetic field is distributed. c. changing the angle between the magnetic field and surface in question. d. e. any combination of a through c. none of these strategies.How do you make an electromagnet ? A. run current through a wire wrapped around an iron rod/nail b. Attach a natural magnet to a battery c line up the N and S poles of a magnet with a wire d. wrap a wire around a permant magnet1. A DC power line for a light-rail system carries 950 A at an angle of 33° to the Earth’s 5.00 × 10-5 T magnetic field. What is the magnitude of the force (in N) on a 125 m section of this line? 2. Consider a 150 turn square loop of wire 15.5 cm on a side that carries a 56 A current in a 1.6 T field. What is the maximum torque on the loop of wire in N⋅m? What is the magnitude of the torque in N⋅m when the angle between the field and the normal to the plane of the loop θ is 14°? 3. Consider two two long, straight, parallel, current-carrying wires, separated by a distance d = 4.5 cm, as shown in the figure. The left wire is directed out of the page with current I1, and the right wire is directed into the page with current I2. The point P is a distance d from both wires, so the wires and the point form an equilateral triangle. If both wires are carrying a current of 3.5 A, what is the magnitude of the magnetic field, in teslas, at point P? If the current from the left wire is 3.5 A…
- What is the direction of the magnetic force on a negative charge that moves as shown in the figure? B Select one: O a. In O b. there is no magnetic force O. Out O d. Left When the light is passing from rarer to a denser medium, which is the correct statement? O a. speed becomes zero O b. speed of light increases speed of light remains constant O d. speed of light decreasesWhat 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.