Atmospheric pressure is a force in an area pushed against a surface by the weight of air in Earth's atmosphere. A barometer measures Barometric Pressure, which in most common instances is synonymous with...

A resistor is an electronic component which offers or implements electrical resistance. It is widely used as a circuit element. Resistors are usually of two types –fixed and variable resistors. Resistance of a...

Thermometers are devices used for the measurement of temperature. They are mainly of two types – electrical and non-electrical. Thermometers based on mechanisms like mercury in glass or vapor pressure fall in...

Diodes are important two terminal devices which are used in many electrical components. They fall into the group of passive electrical devices. Generally, they allow flow of current in only one direction and...

Asynchronous and Synchronous are two different methods of transmission synchronization. The major difference between them lies in their transmission methods, i.e. Synchronous transmissions are synchronized by...