important derivations type questions
... 1. Explain what is meant by quantization of charge and conservation of charge, also give the important property of charge ? 2. State and explain coulomb’s law, give the vector form of coulomb law. 3. Explain the concept of electric field . give the relation between electric field strength and force. ...
... 1. Explain what is meant by quantization of charge and conservation of charge, also give the important property of charge ? 2. State and explain coulomb’s law, give the vector form of coulomb law. 3. Explain the concept of electric field . give the relation between electric field strength and force. ...
Chapter 26
... an E-field electrons move randomly with no net motion random speeds 106 m/s Drift Speed Vd : in the presence of an E-field electrons move randomly with net motion in the direction opposite to E field Drift speeds 10-5 - 10-4 m/s ...
... an E-field electrons move randomly with no net motion random speeds 106 m/s Drift Speed Vd : in the presence of an E-field electrons move randomly with net motion in the direction opposite to E field Drift speeds 10-5 - 10-4 m/s ...
CTExIIIa
... CT3-9 A metal bar (not attached to any outside circuitry) is moving through a uniform magnetic field as shown. The electric field E within the bar is .. A: non-zero and downward B: non-zero and upward ...
... CT3-9 A metal bar (not attached to any outside circuitry) is moving through a uniform magnetic field as shown. The electric field E within the bar is .. A: non-zero and downward B: non-zero and upward ...
Linear Accelerator
... • No ohmic losses of Cu-coils -> less rated power needed and reduced electrical consumption • Closed cycle Liquid He operation -> easy maintenance • „Warm“ access as in a normal ...
... • No ohmic losses of Cu-coils -> less rated power needed and reduced electrical consumption • Closed cycle Liquid He operation -> easy maintenance • „Warm“ access as in a normal ...
Dynamical Petschek Reconnection
... conductive plasma of the solar corona. Petschek proposed another reconnection theory, in which small magnetic diffusion region realizes efficient reconnection with the energy conversion occurring in slow mode MHD shocks. However, recent numerical simulations suggest that Petschek reconnection is not ...
... conductive plasma of the solar corona. Petschek proposed another reconnection theory, in which small magnetic diffusion region realizes efficient reconnection with the energy conversion occurring in slow mode MHD shocks. However, recent numerical simulations suggest that Petschek reconnection is not ...
Charge to mass ratio of the electron
... In this lab you will repeat a classic experiment which was first performed by J.J. Thomson at the end of the 19th century. He conducted a series of revolutionary experiments with cathode ray tubes. At that time many scientist held the view that cathode rays were not particles, but some sort of wave ...
... In this lab you will repeat a classic experiment which was first performed by J.J. Thomson at the end of the 19th century. He conducted a series of revolutionary experiments with cathode ray tubes. At that time many scientist held the view that cathode rays were not particles, but some sort of wave ...
Simulation of the Trajectory of a Charged Particle in Two
... escape velocity at a point and leaves the dipole field. There is also a tendency to this in Fig. 5b. Moreover it can be seen that small changes in the initial conditions cause rather big changes in the trajectory. See Fig. 5c and Fig. 5d, where although the difference in the strength of the magnetic ...
... escape velocity at a point and leaves the dipole field. There is also a tendency to this in Fig. 5b. Moreover it can be seen that small changes in the initial conditions cause rather big changes in the trajectory. See Fig. 5c and Fig. 5d, where although the difference in the strength of the magnetic ...
Chapter 14 Magnets and Electromagnetism
... The higher the voltage, the lower the current needed to transmit a given amount of power. Minimizing the current minimizes the heat lost to resistive heating (P=I2R). Transmission voltages as high as 230 kV = 230,000 V are not unusual. Transformers at electrical substations reduce the voltage to 720 ...
... The higher the voltage, the lower the current needed to transmit a given amount of power. Minimizing the current minimizes the heat lost to resistive heating (P=I2R). Transmission voltages as high as 230 kV = 230,000 V are not unusual. Transformers at electrical substations reduce the voltage to 720 ...
Superconductivity
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics.The electrical resistivity of a metallic conductor decreases gradually as temperature is lowered. In ordinary conductors, such as copper or silver, this decrease is limited by impurities and other defects. Even near absolute zero, a real sample of a normal conductor shows some resistance. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. An electric current flowing through a loop of superconducting wire can persist indefinitely with no power source.In 1986, it was discovered that some cuprate-perovskite ceramic materials have a critical temperature above 90 K (−183 °C). Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high-temperature superconductors. Liquid nitrogen boils at 77 K, and superconduction at higher temperatures than this facilitates many experiments and applications that are less practical at lower temperatures.