Connect the red wire to the positive (+) terminal of one of the cells, and connect the black wire to the negative (-) terminal of the other cell. Later, as a last step, you will connect a wire between the negative (-) terminal of the first cell and the positive (+) terminal of the other cell.
Inelastic market conditions occur when the supply or demand of a good is relatively resistant to changes in price. Economists sometimes use the term qualitatively to describe goods in the marketplace, but may also apply mathematical formulas to quantify the degree to which market conditions are elastic or inelastic.
Inelastic Demand Curves. If the demand for an item changes proportionately less than the price changes, then the item is price inelastic. For example, a demand curve is inelastic if the price of an item increases by 1 percent and purchases decrease by half a percent. Demand curves for items that people need to survive, such as staple foods, are inelastic, because people will buy the items regardless of price.