Physics Group - I (3110011) MCQs

MCQs of Superconductivity

Showing 21 to 30 out of 39 Questions
1 2 3 4
21.
Two superconductors separated by a very thin strip of an __________ forms a Josephson junction
(a) conductor
(b) semiconductor
(c) insulator
(d) ferromagnet
Answer:

Option (c)

22.
In Josephson effect, we consider the electrons can __________ from one superconductor to the other forming a current through the junction.
(a) tunnel
(b) be stopped
(c) form barrier
(d) electronically trigger
Answer:

Option (a)

23.
In Josephson effect, we consider the __________ can tunnel from one superconductor to the other forming a current through the junction.
(a) wave nature
(b) molecules
(c) electrons
(d) supercurrent
Answer:

Option (c)

24.
Full form of SQUID is
(a) Superconducting Quantum Interface Driven
(b) Superconducting Quantum Interference Diamagnetics
(c) Superconducting Quantum Interference Device
(d) Superconducting Quality Interface Driver
Answer:

Option (c)

25.
SQUID is used for
(a) detecting low voltages
(b) detecting low magnetic fields
(c) detecting low currents
(d) all of these
Answer:

Option (d)

26.
Biological currents can be detected using
(a) SQUID
(b) SONAR
(c) Cryotron
(d) NMR
Answer:

Option (a)

27.
SQUID can detect
(a) 10- 10 V
(b) 10- 21 V
(c) 10  17 V
(d) 10- 15 V
Answer:

Option (d)

28.
SQUID can detect
(a) 10  17 T
(b) 10  -17 T
(c) 10  - 10 T
(d) 10  - 21 T
Answer:

Option (d)

29.
It is used to measure the levels of iron in liver.
(a) Cryotron
(b) SQUID
(c) Josephson junction
(d) Maglev
Answer:

Option (b)

30.
Superconductors are used for
(a) To transmit electrical power over very large distances without any power loss or voltage drop.
(b) Used in NMR for scanning the whole body to diagnose medical problems
(c) To generate very strong magnetic fields.
(d) all of these
Answer:

Option (d)

Showing 21 to 30 out of 39 Questions
1 2 3 4