IB DP Physics: HL復習筆記11.3.2 Dielectric Materials
Dielectric Materials Permittivity is the measure of how easy it is to generate an electric field in a certain material The relativity permittivity?εr?is sometimes known as the?dielectric constant F...
IB DP Physics: HL復習筆記11.3.1 Capacitance
Capacitance Capacitors are electrical devices used to store energy in electronic circuits, commonly for a backup release of energy if the power fails They are in the form of two conductive metal pl...
IB DP Physics: HL復習筆記11.2.9 Capacitors & Diode Bridges
Capacitors & Diode Bridges In?rectification, to produce a steady?direct current? or voltage from an?alternating current??or voltage, a?smoothing capacitor?is necessary Smoothing is defined as: ...
IB DP Physics: HL復習筆記11.2.8 Rectification
Rectification Rectification is defined as: The process of converting?alternating current??and voltage into?direct current??and voltage Rectification is used in electronic equipment which requires a...
IB DP Physics: HL復習筆記11.2.7 Investigating Diode Bridges
Investigating Diode Bridges Aim of the Experiment The aim of the experiment is experimentally verify a half-bridge rectifier will produce partial DC output from AC input and a full wave bridge rect...
IB DP Physics: HL復習筆記11.2.6 Diode Bridges
Diode Bridges Most electronic devices cannot use alternating current, they require direct current instead This is possible by use of a?rectifier Rectifiers convert alternating current (ac) to direc...
IB DP Physics: HL復習筆記11.2.5 AC Electrical Power Distribution
AC Electrical Power Distribution Energy losses due to the heating of transmission lines in national power grids are?significant This is because the electrical energy is transmitted across long dist...
IB DP Physics: HL復習筆記11.2.4 Transformer Calculations
Transformer Calculations The transformer equation is: Where: Ns?= number of turns in the secondary coil Np?= number of turns in the primary coil εs?= output voltage from the secondary coil (V) εp?=...
IB DP Physics: HL復習筆記11.2.3 Step-Up & Step-Down Transformers
Step-Up & Step-Down Transformers A transformer is A device that changes high alternating voltage at low current to low alternating voltage at high current, and vice versa This is designed to re...
