Measurements

Chapter 5: Electrical Measurements  · Current- a force generated to push voltage through a circuit ** 1. **Ammeter- a device that measures current ** 2. **Ampere- a measurement · Voltage- defined as electric potential expressed in volts ** 1. **Named after Count Alessandro Giuseppe Antonio Volta ** 2. **Voltmeter- a device that measures voltage ** 3. **Volt- the unit of measurement for voltage · Resistance- a force that opposes current ** 1. **Ohmmeter- A digital/analog meter that measures resistance. ** 2. **Ohm- Measurement of resistance. · Scientific Notation- A short hand method for writing long numbers ** 1. **1x101= 1- a positive example of a scientific notation ** 2. **1x10-1= 0.1- a negative example of scientific notation ** 3. **100= 1x103- how to turn a number into scientific notation · Coulomb- defined as the charge transported in one second by a steady current. ** 1. **Named after Charles-Augustin de Coulomb · Short- a malfunction that makes a circuit have no resistance · Open- a malfunction that makes a circuit lose it’s current path