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Chapter 19: Problem 5

Two identical bar magnets lic onatable along a straight line with their north poles facing each other. Sketch the magnetic field lines.

Short Answer

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Short Answer: The magnetic field lines for two identical bar magnets with their North Poles facing each other will curve outward and repel each other between the magnets, due to the repulsion of like poles. On the outside of the magnets, the field lines will join together, forming a continuous loop to represent the overall magnetic field.

Step by step solution

01

Understanding Magnetic Field Lines

Magnetic field lines represent the magnetic field created by magnets. They show the direction of the magnetic force acting on a magnetic object placed in the field and are always continuous closed loops. They start at the North Pole and end at the South Pole of a magnet. The closer the field lines are, the stronger the magnetic field.
02

Drawing the Magnetic Field Lines for a Single Bar Magnet

To understand the interaction between two bar magnets, first, let's consider the magnetic field lines of a single bar magnet. Starting from its North Pole, the magnetic field lines curve away from the magnet, continue in a loop, and return to the magnet at its South Pole. The field lines maintain a continuous loop.
03

Drawing the Magnetic Field Lines for Two Identical Bar Magnets with North Poles Facing Each Other

Now, place the two bar magnets on a table along a straight line with their North Poles facing each other. Since like poles repel each other, the magnetic field lines in the region between the two North Poles will push against each other, causing them to curve away from the line connecting the two North Poles. On the other hand, in the regions outside the magnets, the magnetic field lines will join with each other and act like a single longer magnet. To summarize, the magnetic field lines near the North Poles will curve outward and repel each other, while on the outside of the magnets, the field lines will combine and appear like a single continuous loop.
04

Final Sketch: Magnetic Field Lines for Two Identical Bar Magnets with North Poles Facing Each Other

Draw the two bar magnets on a table, with their North Poles facing each other along a straight line. Sketch the magnetic field lines between the magnets, curving away from the line connecting the two North Poles, reflecting the repulsion between the like poles. Outside the magnets, show the field lines joining together, forming a continuous loop to represent the overall magnetic field.

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Most popular questions from this chapter

The conversion between atomic mass units and kilograms is $$1 \mathrm{u}=1.66 \times 10^{-27} \mathrm{kg}$$ Natural carbon consists of two different isotopes (excluding $^{14} \mathrm{C},$ which is present in only trace amounts). The isotopes have different masses, which is due to different numbers of neutrons in the nucleus; however, the number of protons is the same, and subsequently the chemical properties are the same. The most abundant isotope has an atomic mass of \(12.00 \mathrm{u} .\) When natural carbon is placed in a mass spectrometer, two lines are formed on the photographic plate. The lines show that the more abundant isotope moved in a circle of radius \(15.0 \mathrm{cm},\) while the rarer isotope moved in a circle of radius \(15.6 \mathrm{cm} .\) What is the atomic mass of the rarer isotope? (The ions have the same charge and are accelerated through the same potential difference before entering the magnetic field.)
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