Question
The resistance of a conductor ________ and a
semiconductor _________ on heating.Solution
When the temperature of metallic conductor increases, the velocity of free electrons increases but it also cause increase in amplitude of vibration of metallic atoms which cause some extra hindrance or resistance in the path of free electron. Hence resistance increases in investing the temperature whereas the resistance of a semiconductor decreases with increase in temperature and vice versa. Hence, option A is correct.Â
The demand for which the product is not available or is not developed till now, is known as _______ demand.
Observing people and asking them questions are two ways to obtain:
Facebook had slightly over __________ unique U.S. visitors per day by September 2011.
How a person establishes expectations for a service they have never purchased but plan to purchase is influenced by each of the following EXCEPT:
_____________ marketing concept focuses on delivering customer satisfaction along with improving the consumer's and the society's well-being.
At which step of the planning stage of the strategic marketing process does a firm develop the program's marketing mix?
Social media deliberately seek to ensure that the message does not end with an individual receiver. Social media seek to reach __________.
Which survey type is usually biased because those likely to respond have had especially positive or negative experiences with a given product, service, ...
Which type of store gives shoppers the greatest variety of merchandise?
All of the following examples a consumer might have difficulty separating the deliverer of the service from the service itself, except:
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