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.
I wanted to get into this business... I have found that Outdoor Billboards cost an investment of about $150,000 to $200,000 for a single face billboard, the potential net profit can be between $125,000 and $360,000 per year! With ads costing your clients $1200 per week for each ad. If you have the capital...