Share this item with your network: Telecommuting and telework are synonyms for the use of telecommunication to work outside the traditional office or workplace, usually at home (SOHO) or in a mobile situation. According to one study, telecommuting has been growing at 15% a year since 1990 in North America.
An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical handmade mechanical instruments to high-precision electronic devices.
The combination electrode measures the difference in potentials between the two sides in the glass electrode. To measure the potentials it must be a closed circuit. The circuit is closed through the internal solutions of the electrode and the external solution that is being measured and the pH meter. As the electrode is immersed in the test solution the glass bulb senses the hydrogen ions as a millivoltage due to the positive charge of the hydrogen ions.