0:03 hello all Welcome to our video on super
0:05 conductivity superc conductivity is a
0:08 fascinating science of materials that
0:11 conduct electricity with zero electrical
0:13 resistance the questions discussed in
0:15 this video are based on the properties of
0:16 of
0:18 superconductors theory which explains
0:21 the superconductors and applications of
0:25 superconductors so let us
0:28 start the first question is which of the
0:30 following statements describe the maal
0:32 effect in
0:36 superconductors the options given are a
0:38 decrease in electrical resistance with
0:40 increasing temperature option b
0:42 expulsion of magnetic fields from the
0:45 interior of of the
0:47 superconductors option C increase in
0:49 electrical conductivity with magnetic
0:52 field strength option D formation of
0:54 vertices within the super
0:57 conductor to answer this question we
1:00 must remember the mner effect ref to the
1:02 expulsion of magnetic fields from the
1:04 interior of the superconductor when it
1:06 is in the superconducting state the
1:08 superconductor will remain in
1:10 superconducting state below a certain
1:13 critical temperature therefore the
1:16 correct answer of this question will be
1:18 yes you guessed it correct option b
1:20 expulsion of magnetic fields from the
1:23 interior of the
1:26 superconductor next question which type
1:29 of superconductors exhibit a sharp
1:30 transition to the superc conducting
1:33 State the options given are type 1
1:36 superconductors type two superconductors
1:38 both type 1 and type two superconductors
1:41 and option D no sharp transition occurs
1:42 in the
1:44 superconductors to answer this question
1:47 correctly we may recall that typon
1:49 superconductors exhibit a sharp
1:52 transition from normal to superc
1:53 conducting State at a critical
1:55 temperature it is characterized by a
1:57 complete expulsion of magnetic fields
2:01 famously known as Maser effect
2:03 therefore the correct answer to this
2:06 question is type one superconductors
2:08 exhibit a sharp transition to the super
2:11 conducting State and therefore option A is
2:17 correct next question is in type two
2:19 superconductors what happens beyond the
2:21 lower critical field the options given
2:24 are option a complete expulsion of
2:27 magnetic fields B formation of vexes C
2:30 decrease in critical temperature d loss
2:32 of superc conducting state to answer
2:35 this question we must remember that
2:37 above the lower critical field type two
2:40 superconductors form vortexes which can
2:43 trap magnetic flux lines this leads to a
2:46 mixed state with partial expulsion of
2:49 magnetic fields and therefore the
2:51 correct answer to this question is in
2:54 type two superconductors there is a
2:56 formation of VES beyond the lower critical
2:57 critical
3:00 field next question is which the Theory
3:01 explains the phenomenon of
3:03 superconductivity on the basis of
3:04 pairing of
3:08 electrons the options given are option A
3:11 Ginsburg L Theory option b Plank's
3:15 Theory option C BCS Theory option D
3:18 Einstein's theory here we must remember
3:21 that the Bardin Cooper cherifer Theory
3:23 famously known as BCS Theory explains
3:26 superc conductivity it proposes that
3:29 electrons form Pairs and the pairs are
3:31 known as Cooper pairs the formation of
3:33 these Cooper pairs is due to the
3:35 attractive interaction mediated by
3:38 latice vibrations that is
3:41 phons and therefore the correct answer
3:49 Theory next question is which type of
3:52 superconductors are often used in high
3:53 magnetic field
3:56 applications the given options are
3:59 option A type one superconductors B type
4:03 two superc conductors option C both type
4:04 1 and type two can be used in high
4:07 magnetic field applications and option D
4:10 neither type 1 nor type two can be used
4:13 in high magnetic field
4:15 applications here we may recall that
4:17 type two superconductors with their
4:20 ability to tolerate High magnetic fields
4:22 and retain superc conductivity in the
4:25 presence of vertices are commonly used
4:27 in high magnetic field applications such
4:30 as MRI machines and particle
4:32 accelerators and therefore the correct
4:36 answer to this question is type two
4:38 superconductors that is option b are
4:45 applications next question is what is
4:47 the primary limitation of type 1
4:50 superconductors in high magnetic field
4:52 applications the given options are
4:56 option a high cost option b limited
4:58 critical temperature option C weak
5:01 magnetic field tolerance and option D
5:03 High electrical resistance the context
5:05 that will help us to answer this
5:08 question is type one superconductors
5:10 have limited magnetic field tolerance
5:12 and exhibit a complete expulsion of
5:14 magnetic fields below a critical field
5:17 strength thus type one superconductors
5:19 are not suitable for high magnetic field
5:22 applications and therefore the correct
5:26 answer of this question is option C weak
5:27 magnetic field [Music]
5:28 [Music] tolerance
5:34 next question is which property of
5:36 superconductors make them ideal for
5:37 developing sensitive
5:41 detectors the given options are option a
5:44 high electrical resistance option b low
5:47 magnetic field tolerance option C mner
5:50 effect and D formation of vertices to
5:52 answer this question correctly we must
5:55 recall that the Meer effect leads to the
5:57 expulsion of magnetic fields from the
6:00 interior of the superconductor this
6:02 makes them ideal for developing
6:03 sensitive detectors such as
6:06 superconducting Quantum interface device
6:08 famously known as
6:11 squids and therefore the correct answer
6:14 to this question is option C that is Maser
6:19 effect next question is which of the
6:22 following is not a characteristic of
6:24 superconductors the given options are
6:27 option a zero electrical resistance
6:30 option b expulsion of magnetic Fields
6:33 Maser effect option C increase in
6:35 critical temperature with increasing
6:37 magnetic field and option D formation of
6:40 vexes in type two superconductors the
6:42 facts which will lead to the correct
6:44 answer of this question is
6:46 superconductors exhibit zero electrical
6:49 resistance expulsion of magnetic fields
6:52 and formation of vortexes in type two
6:54 superconductors however the critical
6:56 temperature typically decreases in the
6:59 presence of magnetic fields and thus the
7:02 correct answer to this question is
7:04 option C increase in critical
7:12 fields next question is which of the
7:14 primary advantage of using type two
7:16 superconductors in high magnetic field
7:19 applications the given options are
7:21 option a complete expulsion of magnetic
7:24 fields option B Sharp transition to the
7:27 superconducting state option C tolerance
7:29 to the high magnetic fields and option D
7:31 low cost the information that will lead
7:34 to the correct answer is type two
7:36 superconductors can tolerate higher
7:38 magnetic fields and retain superc
7:41 conductivity in the presence of VES this
7:43 makes them suitable for high magnetic
7:46 field applications such as MRI machines
7:48 and particle
7:50 accelerators and therefore the correct
7:52 answer to this question is option C
8:00 fields next question is which
8:02 application of superconductivity
8:05 utilizes the mner effect the given
8:07 options are option a magnetic resonance
8:11 imaging MRI option b power transmission
8:14 lines option C magnetic levitation mag
8:17 TRS and option D superc conducting
8:19 Quantum interface devices squids the
8:22 points which we must consider to answer
8:25 this question correctly are MRI utilizes
8:28 strong uniform magnetic fields created
8:31 by super conducting electr magnets power
8:33 transmission lines are based on near
8:35 zero resistance of
8:37 superconductors and Squids exploit the
8:40 Josephson effect it is a phenomenon that
8:42 arises due to the W like nature of
8:43 electrons in
8:46 superconductors mag TRS utilize the mner
8:49 effect to levitate and Propel the train
8:51 above a track using superconducting
8:54 magnets and electromagnetic propulsion
8:56 and therefore the correct answer to this
8:59 question is option C that is magnetic
9:02 limitation magnetic TRS utilizes the mner
9:07 effect next question is which type of
9:09 superconductors are often used in high
9:12 precision magnetometers and sensors the
9:15 given options are option A type one
9:17 superconductors option b type two
9:20 superconductors option C both type 1 and
9:22 type two superconductors can be used in
9:25 high precision magnetometers and sensors
9:28 and option D neither type 1 nor type two
9:30 superconductor s can be used in high
9:33 precision magnetometers and sensors to
9:35 answer this question correctly we may
9:37 recall that type two superconductors
9:40 possesses the ability to retain super
9:43 conductivity in the presence of VES thus
9:46 they are commonly used in high precision
9:48 magnetometers and sensors such as
9:50 superconducting Quantum interface
9:53 devices squids and therefore the correct
9:56 answer of this question is option b type
9:58 two superconductors are often used in
10:06 sensors thank you for watching this
10:09 video I hope this has helped you in
10:10 understanding the concept of
10:14 superconductivity in a better way
