What is a superconductor?
A. A material that conducts electricity with zero resistance at very low temperatures
B. A material that conducts electricity with high resistance at room temperature
C. A material that amplifies electrical signals
D. A material that converts AC to DC
Answer:A
What is a superconductor?
A. A material that conducts electricity with zero resistance at very low temperatures B. A material that conducts electricity with high resistance at room temperature C. A material that amplifies electrical signals D. A material that converts AC to DC