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.
The production costs for making a billboard advertisement are relatively minimal. Printing an advertisement on vinyl for a bulletin billboard (almost 700 square feet of material) will cost around $500. To ballpark production costs per billboard, take the area of the billboard in square feet and multiply it by $0.80.ost Per Billboard: $2,500 per billboard (rate for the purchase 28 billboards). If you wanted to buy billboard advertising in Atlanta, Georgia for a year, the annual cost would be the (number of months) times (the minimum number of billboards) times (the cost per billboard).