Under what circumstances will a magnet cause a. Repulsion b. attraction
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- Under what circumstances will a magnet cause
a. Repulsion
b. attraction
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Solved in 2 steps
- All magnets A. have two poles.B. exert forces.C.are surrounded by a magnetic field.D. All of the aboveIn 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.The magnetic field of a bar magnet most closely resembles of a? A. Current carrying wire loop B. Horseshoe magnet C. Straight current carrying wire D. Stream of electrons moving parallel to one another
- *42. A bar magnet is divided into two pieces. Which of the following statements is true about the force between the broken pieces if they face each other with a small separation? Group of answer choices There is an electric attractive force between the broken pieces. There is an electric repulsive force between the broken pieces. There is a magnetic attractive force between the broken pieces. There is a magnetic repulsive force between the broken pieces.Why does the earth’s magnetic field is believed to originate? A. By a separation of north and south monopoles due to currents within the earth B. With electric currents that are somehow generated in the earth’s core C. From the process that are not understood D. From a giant iron and cobalt bar magnet inside the earth5. A proton (m₂ = 1.67 x 10-27 kg; e = 1.60 x 10-19 C) enters a 14 T field in a direction par- allel to the direction of the magnetic field. The proton is moving at 105 m/s. What is the mag- nitude of the force felt on the proton?