Experiment 5- Electricity Configuration Flashcards
Define Electricity
it can be defined as moving charge.
How do static (non-moving) charges interact with one another?
Via Coulombic Force
How does the mechanical mechanism of energy work?
Something does mechanical work on the system. From there, the system produces useable mechanical work.
How does the combustion mechanism of energy work?
Some kind of fuel is combusted (burned) to produce a large amount of thermal energy in a gas mixture. Thermal energy can then be transferred into electrical energy.
Thermoelectrics belong to a class of devices that function via _____ processes.
Solid-State
How do thermoelectric devices function?
The material inside is exposed to specific functions, separating the charges and forcing them to opposite ends. The thermoelectric material generate this charge when a temperature gradient is applied (one side is heated relative to another, leading to the motion of charges).
What is the main difference between Combustion and Thermoelectrics?
With thermoelectrics, the thermal energy is DIRECTLY converted to electrical energy, not being turned into MECHANICAL energy as an intermediate step.
How do Photovoltaics work?
They are also another class of solid state devices. Electricity is generated with the absorption of light, forcing the charges to move in opposite directions, fighting the coulombic attraction force.
What are the main components of electrolytics?
Cathode and an Anode submerged in a ionic solution. The anion donates electrons to the anode. From there, the cathode consumes 2 electrons to be reduced. Cathode is + and the anode is -.
What is the cause of Electric Potential?
Separation of Charges
The potential at a given location determines the potential energy that a _____.
Charge would have if it was placed in the same location.
What is the device used to measure the electric potential of something?
Digital-Multi Meter
When the dial of a DMM is set to voltage, the meter measures ______.
The electric potential between the tips of the probes.
Note that the DMM can only measure the potential _____ between the two probes, not the _____ potential values.
Difference-Absolute
