Answer:
elastic; deacrese
Explanation:
Elasticity of demand measures the responsiveness of quantity demanded to changes in price.
Demand is elastic if quantity demanded is more sensitive to changes in price.
Demand is inelastic if there's little or no change in quantity demanded when price changes.
From the question, we can see that due to the price increase, overtime, consumers shifted to other alternatives. Thus, the quantity demand of electricity fell. Demand is elastic.
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