
Recitation #4 Solution
... Since there is +Q inside shell, there must be –Q at r = R1 to make the total charge inside for R1 < r < R2 equal to zero, i.e. –Q on the inside surface of the shell. Since there was initially no net charge on the conductor, there must be +Q amount of charge some place to cancel the –Q on the inside ...
... Since there is +Q inside shell, there must be –Q at r = R1 to make the total charge inside for R1 < r < R2 equal to zero, i.e. –Q on the inside surface of the shell. Since there was initially no net charge on the conductor, there must be +Q amount of charge some place to cancel the –Q on the inside ...
2/28/2006 Chapter 30 Faraday`s Law
... His work with electricity and magnetism led him to realize that while a current creates a magnetic field, a magnetic field can be used to create a current. Faraday’s Law describes another form of the connection between magnetism and electricity. We encountered the first connection when we studied Am ...
... His work with electricity and magnetism led him to realize that while a current creates a magnetic field, a magnetic field can be used to create a current. Faraday’s Law describes another form of the connection between magnetism and electricity. We encountered the first connection when we studied Am ...
Topological surface state transport and current saturation in topological insulator... field effect transistors
... devices that may suffer from backscattering. However, one of the main limitations to explore device applications in TIs was its large bulk conductance, shunting the surface conduction and also impeding effective gate tuning. Recently, we demonstrated unambiguous transport signatures of the topologic ...
... devices that may suffer from backscattering. However, one of the main limitations to explore device applications in TIs was its large bulk conductance, shunting the surface conduction and also impeding effective gate tuning. Recently, we demonstrated unambiguous transport signatures of the topologic ...
Global Circuit Overview
... Lord Kelvin’s work motivated surface measurements of the fair weather electric field, including the Carnegie and Maude cruises. His work also verified that the Earth’s surface carries net negative charge. Early 1900’s, CTR Wilson measured E field changes associated with thunderstorms and determined ...
... Lord Kelvin’s work motivated surface measurements of the fair weather electric field, including the Carnegie and Maude cruises. His work also verified that the Earth’s surface carries net negative charge. Early 1900’s, CTR Wilson measured E field changes associated with thunderstorms and determined ...
AC-biased organic light-emitting devices 18
... by an AC gate voltage. Figure 3: Schematic diagram of the device operating mechanism. (a) During the negative semi-period of the gate voltage, holes are injected forming space charge field. (b) During the subsequent positive semi-period, electrons are injected assisted by the previously formed posit ...
... by an AC gate voltage. Figure 3: Schematic diagram of the device operating mechanism. (a) During the negative semi-period of the gate voltage, holes are injected forming space charge field. (b) During the subsequent positive semi-period, electrons are injected assisted by the previously formed posit ...
Lecture4
... The angular component is interesting when one has restricted motion, but otherwise only the radial component is essential Why is the angular component not interesting when one has unrestricted motion? When might restricted motion by interesting? ...
... The angular component is interesting when one has restricted motion, but otherwise only the radial component is essential Why is the angular component not interesting when one has unrestricted motion? When might restricted motion by interesting? ...
Gauss' Law Review & Summary
... in which qenc is the net charge inside an imaginary closed surface (a Gaussian surface) and electric field through the surface: ...
... in which qenc is the net charge inside an imaginary closed surface (a Gaussian surface) and electric field through the surface: ...
Balloon Animals
... • Work to charge to Q is area of triangle W = 1/2 Q(Q/C) = 1/2 Q2/C • Work to charge to DV W = 1/2 DV (CDV) = 1/2 C(DV)2 DV ...
... • Work to charge to Q is area of triangle W = 1/2 Q(Q/C) = 1/2 Q2/C • Work to charge to DV W = 1/2 DV (CDV) = 1/2 C(DV)2 DV ...
BC SM220, SM240 Damper actuators 15Nm
... The damper actuator is fitted with a universal spindle clamp for quick and easy mounting directly on the damper spindle. The actuator is supplied with an antirotation strap for fixing it in position. ...
... The damper actuator is fitted with a universal spindle clamp for quick and easy mounting directly on the damper spindle. The actuator is supplied with an antirotation strap for fixing it in position. ...
On Maxwell`s displacement current for energy and sensors: the
... security and healthy world. But all of these advances can be hugely impacted if we can make the mobile electronics self-powered so that the systems can operate suitably and continuously without interruption. This is desperately needed for IoT because we mostly care about mobile objects. Regarding wh ...
... security and healthy world. But all of these advances can be hugely impacted if we can make the mobile electronics self-powered so that the systems can operate suitably and continuously without interruption. This is desperately needed for IoT because we mostly care about mobile objects. Regarding wh ...
25-1 Capacitance Coaxial cable
... • Molecules act as dipoles, permanent or induced • This effectively reduces the electric field ...
... • Molecules act as dipoles, permanent or induced • This effectively reduces the electric field ...
Finding the net electric field on the perpendicular bisector of the line
... where q represents a quantity of positive charge. This enables us to decide on the directions for the E-field vectors. The two vectors extend from the point P where the net field is to be found since the electric force on a positive test charge at P would be away from either charge. The distance fro ...
... where q represents a quantity of positive charge. This enables us to decide on the directions for the E-field vectors. The two vectors extend from the point P where the net field is to be found since the electric force on a positive test charge at P would be away from either charge. The distance fro ...
Electroactive polymers

Electroactive polymers, or EAPs, are polymers that exhibit a change in size or shape when stimulated by an electric field. The most common applications of this type of material are in actuators and sensors. A typical characteristic property of an EAP is that they will undergo a large amount of deformation while sustaining large forces.The majority of historic actuators are made of ceramic piezoelectric materials. While these materials are able to withstand large forces, they commonly will only deform a fraction of a percent. In the late 1990s, it has been demonstrated that some EAPs can exhibit up to a 380% strain, which is much more than any ceramic actuator. One of the most common applications for EAPs is in the field of robotics in the development of artificial muscles; thus, an electroactive polymer is often referred to as an artificial muscle.