Powerpoint
... The proton then enters a uniform magnetic field that is perpendicular to its velocity. In the magnetic field, the proton follows a circular path with a radius R. (d) Suppose the proton exits the magnetic field region after it has completed a half-circular path. What electric field would then be requ ...
... The proton then enters a uniform magnetic field that is perpendicular to its velocity. In the magnetic field, the proton follows a circular path with a radius R. (d) Suppose the proton exits the magnetic field region after it has completed a half-circular path. What electric field would then be requ ...
P443 HW #11 Due April 21, 2008 1. Griffiths 9.1. A hydrogen atom is
... 1. Griffiths 9.1. A hydrogen atom is placed in a (time-dependent) electric field E = E(t)k̂. Calculate all four matrix elements Hij0 of the perturbation H 0 = eEz between the ground state (n = 1) and the (quadruply degenerate) first excited states (n = 2). Also show that Hii0 = 0 for all five states ...
... 1. Griffiths 9.1. A hydrogen atom is placed in a (time-dependent) electric field E = E(t)k̂. Calculate all four matrix elements Hij0 of the perturbation H 0 = eEz between the ground state (n = 1) and the (quadruply degenerate) first excited states (n = 2). Also show that Hii0 = 0 for all five states ...
Study Guide
... additional bulb affect the other bulbs? Explain. 34. Suppose you have a parallel circuit with two pathways. There is one bulb in each pathway. An additional bulb is added to one of the pathways so that one pathway now has two bulbs and the other pathway still only has one bulb. How will the addition ...
... additional bulb affect the other bulbs? Explain. 34. Suppose you have a parallel circuit with two pathways. There is one bulb in each pathway. An additional bulb is added to one of the pathways so that one pathway now has two bulbs and the other pathway still only has one bulb. How will the addition ...
introduction
... The electric charge on a body is measured in coulombs (see Electrical Units; International System of Units). The force between particles bearing charges q1 and q2 can be calculated by Coulomb’s law, This equation states that the force is proportional to the product of the charges, divided by the squ ...
... The electric charge on a body is measured in coulombs (see Electrical Units; International System of Units). The force between particles bearing charges q1 and q2 can be calculated by Coulomb’s law, This equation states that the force is proportional to the product of the charges, divided by the squ ...
B Bc θ
... 10. Record the angle (θ1 ) and determine its uncertainty (δθ1 ) from the precision of the compass. 11. Determine the fractional uncertainty (δθ1 /θ1 ) for this measurement and record this in your data table. 12. Record the current I1 and determine δI1 from the precision of the ammeter. 13. Determine ...
... 10. Record the angle (θ1 ) and determine its uncertainty (δθ1 ) from the precision of the compass. 11. Determine the fractional uncertainty (δθ1 /θ1 ) for this measurement and record this in your data table. 12. Record the current I1 and determine δI1 from the precision of the ammeter. 13. Determine ...
Magnetic Circuits
... Energy is also lost due to eddy currents in the core material This can be minimized with isolated sheets of metal or powdered iron cores with insulating binder to interrupt the current flow. ...
... Energy is also lost due to eddy currents in the core material This can be minimized with isolated sheets of metal or powdered iron cores with insulating binder to interrupt the current flow. ...
File - electro science club
... Scientists sometimes use air-core magnets to study fusion reactions. Electromagnets are different because they have a ferromagnetic material (usually iron or steel) located inside of the coils of wire. The core isn't air; it is something that aids in producing magnetic effects, so electromagnets are ...
... Scientists sometimes use air-core magnets to study fusion reactions. Electromagnets are different because they have a ferromagnetic material (usually iron or steel) located inside of the coils of wire. The core isn't air; it is something that aids in producing magnetic effects, so electromagnets are ...
restless continents text
... recorded in the ocean floor. Throughout Earth’s history, the north and south magnetic poles have changed places many times. When the poles change places, the polarity of Earth’s magnetic poles changes, as shown in Figure 4. When Earth’s magnetic poles change places, this change is called a magnetic ...
... recorded in the ocean floor. Throughout Earth’s history, the north and south magnetic poles have changed places many times. When the poles change places, the polarity of Earth’s magnetic poles changes, as shown in Figure 4. When Earth’s magnetic poles change places, this change is called a magnetic ...
Magnetic-Properties-of-Materials
... This class of materials, some of the atoms or ions in the material have a net magnetic moment due to unpaired electrons in partially filled orbitals. One of the most important atoms with unpaired electrons is iron. However, the individual magnetic moments do not interact magnetically, and like diama ...
... This class of materials, some of the atoms or ions in the material have a net magnetic moment due to unpaired electrons in partially filled orbitals. One of the most important atoms with unpaired electrons is iron. However, the individual magnetic moments do not interact magnetically, and like diama ...
Physics in Everyday Life - Electricty and Magnetism
... • There are two types of material • Conductors, which allow charge to flow through them • Insulators, which prevent charge from moving through them. • Static electricity builds up on insulating materials (plastics, paper, wood, rubber) • Conducting materials are usually metals ...
... • There are two types of material • Conductors, which allow charge to flow through them • Insulators, which prevent charge from moving through them. • Static electricity builds up on insulating materials (plastics, paper, wood, rubber) • Conducting materials are usually metals ...
Presentation - ScienceScene
... 2. Adjust one of the unmarked magnets so that it is attracted to the S marked end of the reference magnet. Place a mark on the unmarked magnet indicating the attracted end. 3. Adjust the second unmarked magnet so that it is also attracted to the S marked end of the reference magnet; place a mark on ...
... 2. Adjust one of the unmarked magnets so that it is attracted to the S marked end of the reference magnet. Place a mark on the unmarked magnet indicating the attracted end. 3. Adjust the second unmarked magnet so that it is also attracted to the S marked end of the reference magnet; place a mark on ...
What is a Magnet?
... A British scientist named Wilbert Gilbert suggested that Earth is a magnet when he observed a magnet hanging from a string will align its north and south poles with the north and south poles of the Earth. The Earth’s Magnetic Poles Earth has _____________ magnetic poles. Magnetic poles are _____ ...
... A British scientist named Wilbert Gilbert suggested that Earth is a magnet when he observed a magnet hanging from a string will align its north and south poles with the north and south poles of the Earth. The Earth’s Magnetic Poles Earth has _____________ magnetic poles. Magnetic poles are _____ ...
magnetism lesson - Red Hook Central Schools
... attraction or repulsion of a material due to the motion of its electrons. ...
... attraction or repulsion of a material due to the motion of its electrons. ...
AP Physics III.E
... Ex. A coil of wire with 20 turns has an area of 1.5 EE –3 square meters. A magnetic field is perpendicular to the surface of each loop at all times. At the initial time, the initial magnetic field is 0.050 T. At 10.0 s the magnetic field is 0.060 T. Find a) the average induced emf during this time ...
... Ex. A coil of wire with 20 turns has an area of 1.5 EE –3 square meters. A magnetic field is perpendicular to the surface of each loop at all times. At the initial time, the initial magnetic field is 0.050 T. At 10.0 s the magnetic field is 0.060 T. Find a) the average induced emf during this time ...
Magnets and Magnetism
... Ferromagnets – magnets made with metals Electromagnets – produced by an electric current. Temporary magnets – made from materials that are easy to magnetize, but they lose their magnetization easily too. Permanent magnets – difficult to magnetize, but retain their magnetic properties better. ...
... Ferromagnets – magnets made with metals Electromagnets – produced by an electric current. Temporary magnets – made from materials that are easy to magnetize, but they lose their magnetization easily too. Permanent magnets – difficult to magnetize, but retain their magnetic properties better. ...
Earth's magnetic field
Earth's magnetic field, also known as the geomagnetic field, is the magnetic field that extends from the Earth's interior to where it meets the solar wind, a stream of charged particles emanating from the Sun. Its magnitude at the Earth's surface ranges from 25 to 65 microteslas (0.25 to 0.65 gauss). Roughly speaking it is the field of a magnetic dipole currently tilted at an angle of about 10 degrees with respect to Earth's rotational axis, as if there were a bar magnet placed at that angle at the center of the Earth. Unlike a bar magnet, however, Earth's magnetic field changes over time because it is generated by a geodynamo (in Earth's case, the motion of molten iron alloys in its outer core).The North and South magnetic poles wander widely, but sufficiently slowly for ordinary compasses to remain useful for navigation. However, at irregular intervals averaging several hundred thousand years, the Earth's field reverses and the North and South Magnetic Poles relatively abruptly switch places. These reversals of the geomagnetic poles leave a record in rocks that are of value to paleomagnetists in calculating geomagnetic fields in the past. Such information in turn is helpful in studying the motions of continents and ocean floors in the process of plate tectonics.The magnetosphere is the region above the ionosphere and extends several tens of thousands of kilometers into space, protecting the Earth from the charged particles of the solar wind and cosmic rays that would otherwise strip away the upper atmosphere, including the ozone layer that protects the Earth from harmful ultraviolet radiation.