Electricity
... • Electricity - movement of electrical charges – Electric current is the flow of electrons from negative to positive – An electric current will occur in a conductive metal when an electric potential exists – Electric potential is the difference between the charge at the – end and the + end – Electri ...
... • Electricity - movement of electrical charges – Electric current is the flow of electrons from negative to positive – An electric current will occur in a conductive metal when an electric potential exists – Electric potential is the difference between the charge at the – end and the + end – Electri ...
resistance - SchoolRack
... • The same current flows through all components. • If there is a break in any point of the circuit no current flows. • The total resistance in a series combination of resistance is determined from potential difference and current. ...
... • The same current flows through all components. • If there is a break in any point of the circuit no current flows. • The total resistance in a series combination of resistance is determined from potential difference and current. ...
past paper questions electrical circuits
... When the voltage across the resistor is reduced, the current through the resistor __________________________________________________________________________________ When the voltage of the supply is reduced, the voltage across the resistor ____________________________________________________________ ...
... When the voltage across the resistor is reduced, the current through the resistor __________________________________________________________________________________ When the voltage of the supply is reduced, the voltage across the resistor ____________________________________________________________ ...
02 Guided notes material
... contact, either directly or through a conducting object (e.g., when the blade of an electric lawn mower cuts the electrical wire). When this happens, the current can flow with very little restriction because the resistance of the loop formed by the two conductors is very weak. The high amount of cur ...
... contact, either directly or through a conducting object (e.g., when the blade of an electric lawn mower cuts the electrical wire). When this happens, the current can flow with very little restriction because the resistance of the loop formed by the two conductors is very weak. The high amount of cur ...
Learning Objectives
... flow in two ways, if it flows in the same direction and is called direct current (DC). • If it flows and keeps changing direction it is called alternating current(AC). ...
... flow in two ways, if it flows in the same direction and is called direct current (DC). • If it flows and keeps changing direction it is called alternating current(AC). ...
electronic properties of matter
... - The extra electron will not be present in a bond and will thus be able to drift through the material - Example: Si doped with P - The impurity is known as the “Donor” because it donates an extra electron to the crystal lattice p-type material - This is made by doping a semi-conductor with an eleme ...
... - The extra electron will not be present in a bond and will thus be able to drift through the material - Example: Si doped with P - The impurity is known as the “Donor” because it donates an extra electron to the crystal lattice p-type material - This is made by doping a semi-conductor with an eleme ...
Current and Resistance powerpoint lecture
... The residual resistivity near absolute zero is caused primarily by the collisions of electrons with impurities and imperfections in the metal High temperature resistivity is predominantly characterized by collisions between the electrons and the metal atoms ...
... The residual resistivity near absolute zero is caused primarily by the collisions of electrons with impurities and imperfections in the metal High temperature resistivity is predominantly characterized by collisions between the electrons and the metal atoms ...
1 In which way is the electric force similar to the gravitational force
... its V would increase. The electron's electrical PE would increase; its V would decrease. The electron's electrical PE would decrease; its V would decrease. The electron's electrical PE would decrease; its V would increase. ...
... its V would increase. The electron's electrical PE would increase; its V would decrease. The electron's electrical PE would decrease; its V would decrease. The electron's electrical PE would decrease; its V would increase. ...
Electromigration
Electromigration is the transport of material caused by the gradual movement of the ions in a conductor due to the momentum transfer between conducting electrons and diffusing metal atoms. The effect is important in applications where high direct current densities are used, such as in microelectronics and related structures. As the structure size in electronics such as integrated circuits (ICs) decreases, the practical significance of this effect increases.