Propagation of electromagnetic waves
... A closed loop of E field lines will exist when the magnetic field varies with time Divergence of magnetic field =0 ...
... A closed loop of E field lines will exist when the magnetic field varies with time Divergence of magnetic field =0 ...
Torque on Current Loop
... v⊥ = v sinφ contributes to circular motion v|| = v cosφ is unchanged ...
... v⊥ = v sinφ contributes to circular motion v|| = v cosφ is unchanged ...
Phy C April exam 2011 Revised
... 5. In the Bohr model of the hydrogen atom, the electron (charge e) moves around the proton at a speed v in a circle of radius r. Considering the orbiting electron to be a small current loop, determine the maximum torque applied on this current loop by an external magnetic field B. a. 0.5evrB b. evrB ...
... 5. In the Bohr model of the hydrogen atom, the electron (charge e) moves around the proton at a speed v in a circle of radius r. Considering the orbiting electron to be a small current loop, determine the maximum torque applied on this current loop by an external magnetic field B. a. 0.5evrB b. evrB ...
Magnetism
... – planets (except Venus, Mars, Pluto) have magnetic fields. – Gas giants have BIG magnetic fields. – Little rocky planets rarely have enough iron & nickel in their cores, or their cores don’t spin fast enough to align the electron-spins. – The moon does not have a magnetic field; but the sun does! – ...
... – planets (except Venus, Mars, Pluto) have magnetic fields. – Gas giants have BIG magnetic fields. – Little rocky planets rarely have enough iron & nickel in their cores, or their cores don’t spin fast enough to align the electron-spins. – The moon does not have a magnetic field; but the sun does! – ...
some historical information on electromagnetism
... 1892 - George FitzGerald proposes length contraction as a way to reconcile Lorentz's theory and the null results on the motion of the earth through the aether. His ideas are ridiculed by some of his colleagues in Dublin. At the end of this year Lorentz endorses this idea. 1892 – Nikola Tesla creates ...
... 1892 - George FitzGerald proposes length contraction as a way to reconcile Lorentz's theory and the null results on the motion of the earth through the aether. His ideas are ridiculed by some of his colleagues in Dublin. At the end of this year Lorentz endorses this idea. 1892 – Nikola Tesla creates ...
exam2_solutions
... loop is parallel (or antiparallel) to the magnetic field. From equation MB sin follows 0 . ...
... loop is parallel (or antiparallel) to the magnetic field. From equation MB sin follows 0 . ...
Physics 100 Name: Electricity Notes, Part IV: Odds, Ends, and Lenz
... 6. In the diagrams on the right, current is flowing through a simple motor coil. Directly above or beneath the motor coil, there is a permanent magnet with labeled polarity. The top segment of the coil is labeled with an X. For each diagram, tell whether that coil segment (the X segment) will rotate ...
... 6. In the diagrams on the right, current is flowing through a simple motor coil. Directly above or beneath the motor coil, there is a permanent magnet with labeled polarity. The top segment of the coil is labeled with an X. For each diagram, tell whether that coil segment (the X segment) will rotate ...
Chapter 28: Sources of Magnetic Field
... Recall for an orbiting point, the angular momentum, L, is equal to mvr So =eL/(2m) ...
... Recall for an orbiting point, the angular momentum, L, is equal to mvr So =eL/(2m) ...
Magnetic monopole
A magnetic monopole is a hypothetical elementary particle in particle physics that is an isolated magnet with only one magnetic pole (a north pole without a south pole or vice versa). In more technical terms, a magnetic monopole would have a net ""magnetic charge"". Modern interest in the concept stems from particle theories, notably the grand unified and superstring theories, which predict their existence.Magnetism in bar magnets and electromagnets does not arise from magnetic monopoles. There is no conclusive experimental evidence that magnetic monopoles exist at all in our universe.Some condensed matter systems contain effective (non-isolated) magnetic monopole quasi-particles, or contain phenomena that are mathematically analogous to magnetic monopoles.