Impedance is the <u>opposition to the flow of alternating current.</u>
Option a
<u>Explanation:</u>
Electrical impedance is the term used to measure the opposition present when a circuit opposes the flow of an electric current in the presence of voltage.
Impedance is measured in the unit of Ohms.
It is often confused with resistance. While resistance is used for ‘direct current’, impedance is used for ‘alternating current’. Impedance includes resistance and reactance both.
Just like resistance, presence of impedance prevents extensive damage when there is an electrical surge.
Measure the lakes and see what happens next
They decided to go to the west because not many people were going west and they could make new farms and get credit for finding this area.<span />
Consumers are buying more products because their need is created by marketing, there is a trend for a product or there is a special moment that a particular product is needed among some group of people. Continuality of selling a product can be also achieved by producing its newer versions - sooner or later most of the consumers will feel a need to own newer verseion (or they will wait for another newer version). Good example of that is what happens to iPhone sales.
