HW 1 solutions Point Charge in One Dimension A point charge q1 = -3.5 μC is located at the origin of a co-ordinate system. Another point charge q2 = 5.1 μC is located along the x-axis at a distance x2 = 9.3 cm from q1. 1) What is F12‚x‚ the value of the x-component of the force that q1 exerts on q2? -18.57 N For all of these problems we want to make use of the standard electric force equation: ̂ So for this problem with K=9*109 Nm2/C2‚ Q1=-3.5μC‚ Q2=5.1 μC‚ and r=9.3 cm we get F=-18.57
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1. Which of the following statements about magnetic fields is not true? | Magnetic Flux is a vector. | | Changing magnetic fields create electric fields. | | Changing electric fields create magnetic fields. | | The magnetic field cannot do work on a moving charge. | | The magnetic force on a moving charge can be zero. | 2. If you double the current through an inductor‚ the energy stored in the associated magnetic field increases by a factor of _____. | Two - wrong |
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PHOTOGRAPHY The word photography derives from the Greek phōtos means "light" and graphos means "drawing"‚ together meaning "drawing with light". Photography is the art‚ science‚ and practice of creating durable images by recording light or other electromagnetic radiation‚ either chemically by means of a light-sensitive material or electronically by means of an image sensor. Photography has many uses for business‚ science‚ manufacturing‚ art‚ recreational purposes‚ and mass communication. Modern
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ENERGY: Energy is the amount of force or power when applied can move one object from one position to another or Energy defines the capacity of a system to do work. Energy exists in everybody whether they are human beings or animals or non-living things for e.g.: Jet‚ Light‚ Machines etc... Energy can have many forms: kinetic‚ potential‚ light‚ sound‚ gravitational‚ elastic‚ electromagnetic or nuclear. The many different natural and renewable energy technologies are by no means breakthrough. Many
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Mie resonances in dielectric particles can increase the local optical density of states (LDOS) associated with either electric or magnetic transition rates in nearby quantum emitters without ohmic losses. Their rather large quality factors compensate their low field confinement as compared to the plasmon resonances of metallic nanostructures for which nonradiative decay channels dominate. We show theoretically that near-infrared quadrupolar magnetic resonances in silicon particles can preferentially
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An experiment to investigate the factors which affect Resistance in a wire What is resistance? A potential difference (V) applied across a wire of length (l)‚ there is in the conductor‚ an electric field (E). In this electric field the free electrons are not however under continuous acceleration (Ee/m). This is because they repeatedly collide with the moderately massive vibrating atoms losing their kinetic energy. The vibrating atoms having gained this kinetic energy now vibrate more. The resulting
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Wire-Map Testers: The Wiremap test is used to identify physical errors of the installation; proper pin termination at each end‚ shorts between any two or more wires‚ continuity to the remote end‚ split pairs‚ crossed pairs‚ reversed pairs‚ and any other mis-wiring. It tests four-pair data and voice cable links terminated with standard‚ modular‚ eight-position RJ45 jacks. Shielded ports test both shielded and unshielded cabling. This is essential for just about any network as telephones
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Making a Model Maglev Train Magnetically levitating (Maglev) trains use electromagnetic force to lift the train above the tracks. This system greatly reduces wear because there are few moving parts that carry heavy loads. It’s also more fuel efficient‚ since the energy needed to overcome friction is greatly reduced. Although maglev technology is still in its experimental stages‚ many engineers believe it will become the standard for mass transit systems over the next 100 years. This project
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William Gilbert William Gilbert was also known as William Gilbert. He lived from 24 May 1544 – 30 November 1603. He was an English physician‚ physicist and natural philosopher. He didn’t agree with the traditional way of learning which was to learn completely from books and instead tried investigating and experiments of his own to find out information. He became famous for his experiments with electricity and magnetism which he published books on. William Gilbert first coined the term "electricity"
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GUIDE QUESTIONS 1. What happens to the distribution of magnetic flux lines when the iron ring was placed in between the U-magnets? The distribution of magnetic flux lines when the iron ring is placed in between the magnets‚ the iron ring is included in the distribution of flux lines. Instead of connecting to the other pole‚ the ring affects its distribution and some of it is attracted to the iron ring. 2. How does changing the current affect the magnetic force on a wire suspended in a magnetic
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