Which One of the Following Statements Concerning Superconductors Is False

question 44

Multiple Choice

Which one of the following statements concerning superconductors is false?

• A)Below its critical temperature,the resistivity of a superconductor is zero -m.
• B)Critical temperatures for some superconductors exceed 100 K.
• C)All materials are superconducting at temperatures near absolute zero kelvin.
• D)A constant current can be maintained in a superconducting ring for several years without an emf.
• E)Superconductors are perfect conductors.

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A theory in finance that suggests when a company announces an increase or decrease in dividends, it signals its financial health and prospects to investors.

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