Classification of Sedimentary Rocks (Part 1). Sedimentary rocks are classified based on their texture and composition. Detrital sediment has a clastic (broken) texture. Chemical and organic sediments have a non-clastic texture, and are classified based solely on their composition.
Galvanometer vs Ammeter. Ammeter and galvanometer are two devices that are used in the field of electronic and electrical measurements. Galvanometer is a very important device that is used to develop other measuring devices. It is also used to measure electrical currents. Ammeter is also a device that is used to measure electrical current.
An ammeter measures current; a voltmeter measures the voltage between two points; and an ohmmeter measures resistance. A multimeter combines these functions into a single instrument. A multimeter can be used to measure voltage, current and resistance in an electrical circuit that uses resistors and capacitors. To understand how to use a multimeter with these components, schematic symbols for resistors, capacitors and other electronic schematic symbols need to be readily recognized.