Oscilloscope as a DC & AC Voltmeter A Cathode-Ray Oscilloscope (CRO) is a laboratory instrument used to display, measure and analyse waveforms of electrical circuits It can therefore be used as...
Sinusoidal & Root-Mean-Square Current & Voltage An alternating current (a.c) is defined as: A current which periodically varies between a positive to a negative value with time This ...
What is a continuous random variable? A continuous random variable (often abbreviated to CRV) is a random variable that can take?any value?within a range of infinite values Continuous random variab...
Edexcel IGCSE Chemistry 復習筆記 1.6 5 Ionic compounds: Bonds, Structure & Properties Ionic bonding The positive and negative charges are held together by the strong?electrostatic forces...
Edexcel IGCSE Chemistry 復習筆記 1.6 4 Ionic Bonds: Dot & Cross Diagrams Ionic Bonds: Dot & Cross Diagrams Deducing Dot & Cross Diagrams for Ionic Compounds Sodium is a group 1 metal so...
Edexcel IGCSE Chemistry 復習筆記 1.6.3 Formulae for Ionic Compounds Formulae for Ionic Compounds The formulae of simple ionic compounds can be calculated if you know the charge on the ions B...
Required Practical: Investigating Flux Linkage on a Search Coil Aims of the Experiment The overall aim of this experiment is to determine how the magnetic flux linkage varies?with the angle ...
Edexcel IGCSE Chemistry 復習筆記 1.6.2 Common Ions Common Ions How to deduce the charge of an ion Find the number of electrons in the outer electron shell Find out if it is easy for the atom...
Moving Conductors in a Magnetic Field Similar to a coil or a solenoid, a straight conducting rod moving through a magnetic field will also have an e.m.f induced in it This is only when the c...
