Question

Which of the following properties is not observed in the case of Superconductors?

• A. Meissner Effect
• B. Formation of Cooper pairs
• C. Paramagnetism
• D. Zero resistivity

Hint:

Superconductors exhibit perfect diamagnetism, not paramagnetism. The Meissner Effect is key!

Answer 1

The Correct Option is C

Step 1: Superconductivity Properties.
Superconductors, when cooled below their critical temperature, display unique properties: - Meissner Effect: Superconductors expel magnetic fields. - Cooper Pairs: Electrons form pairs with opposite spin and momentum, enabling superconductivity. - Zero Resistivity: Superconductors exhibit a complete absence of electrical resistance. Step 2: Paramagnetism.
- Paramagnetism: Materials weakly attracted to external magnetic fields. This is NOT a property of superconductors. Superconductors exhibit perfect diamagnetism (magnetic field expulsion).
Final Answer: \[ \boxed{\text{Paramagnetism}} \]