Explore topic-wise MCQs in Engineering Physics.

This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.

1.	Calculate the critical current for a wire of lead having a diameter of 1mm at 4.2 K. Calculate temperature for lead is 7.18 K and H_c = 6.5 10⁴ A/m. Critical field is 42.758 10³ A/m.
A.	3.5593 A
B.	27.3 A
C.	46.67 A
D.	134.26 A
Answer» E.

Discussion

2.	When does a normal conductor become a superconductor?
A.	At normal temperature
B.	At Curie temperature
C.	At critical temperature
D.	Never
Answer» D. Never

Discussion

Explore topic-wise MCQs in Engineering Physics.

Calculate the critical current for a wire of lead having a diameter of 1mm at 4.2 K. Calculate temperature for lead is 7.18 K and Hc = 6.5 104 A/m. Critical field is 42.758 103 A/m.

When does a normal conductor become a superconductor?

Calculate the critical current for a wire of lead having a diameter of 1mm at 4.2 K. Calculate temperature for lead is 7.18 K and H_c = 6.5 10⁴ A/m. Critical field is 42.758 10³ A/m.