Unit 1 Flashcards
How to calculate Vpeak
Amplitude x y-gain
AC current
Current changes direction every half cycle.
EMF
The energy given to each coulomb of charge passing through the source.
What is C
Capacitance (F) farads
internal resistance
The resistance inside of a cell. This accts as a heating element when current flows in the circuit.
Short circuit
When external resistance (R) = 0
Open circuit
When there is no current passing through the circuit.
How to calculate period (T)
Length of one wave (lambda) x timebase
What is Q
Charge (C) coulombs
Definition of capacitance
The number of coulombs per volt
Lost Volts
Voltage dropped across the internal resistance of a cell.
What are the 3 types of band structure
Conductor, semi conductor and insulator.
scale reading uncertainties
Indication of how precisely an instrument scale can be read. (+or- 1)
Random uncertainties
When slight variations occur after repeating a measurement
Systematic uncertainties
When readings taken are all too small or too large.
