Vibration Motor
... computer runs a CPU fan to draw cooler air into the case from the outside, and some motors runs the cd driver so the information on the disc could be read. In the closet, there is a vacuum cleaner, which has a motor on it to run the impeller. Over in the kitchen, there are motors in the refrigerator ...
... computer runs a CPU fan to draw cooler air into the case from the outside, and some motors runs the cd driver so the information on the disc could be read. In the closet, there is a vacuum cleaner, which has a motor on it to run the impeller. Over in the kitchen, there are motors in the refrigerator ...
Displacement current
... Thus, the imaginary part of the complex permittivity leads to a volume current density term that is in phase with the electric field, as if the material had an effective conductivity given by ...
... Thus, the imaginary part of the complex permittivity leads to a volume current density term that is in phase with the electric field, as if the material had an effective conductivity given by ...
Electrical energy
... started a revolution in superconductors. If certain materials called superconductors are cooled to very low temperatures, they lose all resistance to the flow of electricity. In electric power lines there is always some loss of energy as heat, due to the resistance of the metal in the wires. If thes ...
... started a revolution in superconductors. If certain materials called superconductors are cooled to very low temperatures, they lose all resistance to the flow of electricity. In electric power lines there is always some loss of energy as heat, due to the resistance of the metal in the wires. If thes ...
lecture14
... The direction of any magnetic induction effect is such as to oppose the cause of the effect For instance: a current produced by an induced emf moves in a direction so that its magnetic field opposes the original change in flux ...
... The direction of any magnetic induction effect is such as to oppose the cause of the effect For instance: a current produced by an induced emf moves in a direction so that its magnetic field opposes the original change in flux ...
