Glossary of Terms
... positions; can be easily wired to reverse the electrical flow Double pole single throw switch a switch that operates two circuits at the same time Drive train a group of gears connected to control ...
... positions; can be easily wired to reverse the electrical flow Double pole single throw switch a switch that operates two circuits at the same time Drive train a group of gears connected to control ...
Ch.20 Induced voltages and Inductance Faraday`s Law
... emf – electric motive force, not really a force. This is a source of electrical work/energy per unit charge. work/charge = volt Devices that increase the potential energy of circulating charges (batteries, generators) are sources of emf. Think of emf as a voltage increase. ...
... emf – electric motive force, not really a force. This is a source of electrical work/energy per unit charge. work/charge = volt Devices that increase the potential energy of circulating charges (batteries, generators) are sources of emf. Think of emf as a voltage increase. ...
Lecture35
... always appears in the form of magnetic dipoles. If this were true, it would look like the regular gauss law. ...
... always appears in the form of magnetic dipoles. If this were true, it would look like the regular gauss law. ...
directed_reading_Magnetism and Electricity p518-52
... d. Make the solenoid loops smaller. Turning Electromagnets On and Off ...
... d. Make the solenoid loops smaller. Turning Electromagnets On and Off ...
16-2 Extending our Model of Charge
... exploits the different material properties of metal and rubber, specifically the differences in their conductivity. Metals (which we classify as conductors) generally have conductivities that are orders of magnitude larger than the conductivities of materials like rubber and plastic – those material ...
... exploits the different material properties of metal and rubber, specifically the differences in their conductivity. Metals (which we classify as conductors) generally have conductivities that are orders of magnitude larger than the conductivities of materials like rubber and plastic – those material ...
Motor Effect - Seattle Central
... The deflecting force that a magnet exerts on a current-carrying wire is the mechanism behind the operation of most electric motors. Curiously (and happily for our sense of symmetry!), the reverse effect is also true: Move a loop of wire across the pole of a magnet, and a current will begin to flow i ...
... The deflecting force that a magnet exerts on a current-carrying wire is the mechanism behind the operation of most electric motors. Curiously (and happily for our sense of symmetry!), the reverse effect is also true: Move a loop of wire across the pole of a magnet, and a current will begin to flow i ...
em induction
... A conducting rod with mass m and length L moves on two frictionless parallel rails in the presence of a uniform magnetic field. The bar is given an initial velocity vi at time t=0. Calculate the velocity of the bar as a function of time. Bar will slow down due to resistive force. ...
... A conducting rod with mass m and length L moves on two frictionless parallel rails in the presence of a uniform magnetic field. The bar is given an initial velocity vi at time t=0. Calculate the velocity of the bar as a function of time. Bar will slow down due to resistive force. ...
Electric current
An electric current is a flow of electric charge. In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons such as in a plasma.The SI unit for measuring an electric current is the ampere, which is the flow of electric charge across a surface at the rate of one coulomb per second. Electric current is measured using a device called an ammeter.Electric currents cause Joule heating, which creates light in incandescent light bulbs. They also create magnetic fields, which are used in motors, inductors and generators.The particles that carry the charge in an electric current are called charge carriers. In metals, one or more electrons from each atom are loosely bound to the atom, and can move freely about within the metal. These conduction electrons are the charge carriers in metal conductors.