The device for measuring the current or emf is connected within the circuit of the thermocouple. It measures the amount of emf flowing through the circuit due to the two junctions of the two dissimilar metals maintained at different temperatures. In figure 2 the two junctions of the thermocouple and the device used for measurement of emf (potentiometer) are shown.
Billboards are large advertising structures placed alongside busy roads to be noticed by drivers and passing pedestrians. It is sometimes called hoarding in other parts of the world. These billboards could attract pedestrians not only because they are large but also due to the variety of designs that it posses. It gives a designer so much room for customizing by using extensions and embellishments.
We have listed the most popular ad sizes below. However, IAB haas a great site to reference what standard banner ad sizes you can use. The Interactive Advertising Bureau (IAB) is comprised of more than 500 leading media and technology companies that are responsible for selling 86% of online advertising in the United States. About Lawrence Stone.