Electromagnetic Induction | JEE Main 2020 Question Solution | JEE Physics | Mohit Goenka

JEE Main 2021 Feb Physics Solutions

JEE Main 2020PYQs Solutions Link:

Eduniti - Physics by Mohit Goenka brings a series of best solutions of PYQs for JEE Main and NEET 2021 l 2022 Aspirants.
In this video we discuss all 16 questions on Electromagnetic Induction from Class XII asked in JEE Main 2020.
EMI chapter involves concept on Faraday's Law, change in flux, Self Inductance, LR Circuit across DC Supply etc.

Other videos links:

Top 10 Questions on Solids and Fluids (PYQs)

PYQ Kinematics JEE Main 2020

PYQ Electrostatics JEE Main 2020

PYQ Semiconductor JEE Main 2020

PYQ Current Electricity JEE

PYQ Laws of Motion JEE Main 2020

PYQ Gravitation JEE Main 2020

HC Verma Selected Problems Solution

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#TargetNEET2021

About Faculty-
Completed Bachelors and Masters from IIT Kharagpur. Having an experience of +3 Years in teaching I reckoned the urge within me to help students appreciate the subject by delivering the toughest concept in simplest manner through practical demonstrations and visual aids.

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[shailejapatil]

Revision-
2020
1)good conceptual qn (relating flux with no. Of field lines)
2)New theory(Rotating loop)
3)1G=10^-4T
4)Diagram should be properly drawn
5)New thoery(Rotating loop)
6)Re do(although easy)
8)good question(don't confuse b/w Cross sectional area of wire and Loop area)
12)New thoery(Rotating loop)
14)Re do V=Ldi/dt
15)Very good qn clearing sign mistakes
16)requires carefully use each and every data

2021
145)A good graphical qn
148)very good graphical+conceptual qn
149)misinterpreted qn
150)ignored resistance of loop+ confused in diagram

2023
126)Conceptual qn
133)easy but long qn
134)New idea

2024
132)Very very very good qn
134)New idea
135)Re do
136)re do
138)conceptual qn

Theoretical
71)NTA*
72)Conceptual
74)Conceptual

2022
June
3)Good qn
5)good
6)Non traditional qn
7)re do
8)Good
9)high chance of mistake in Area of wire and area of loop

July
1)Standard qn
3)easy but not striked

[arvetivijvalarya]

For revision

1. ( flux entering plane = flux leaving ring but opposite direction/ - sign)
5. 20:54 revise
6. 23:07 faraday concept revise
8. 28:33 ( in resistance formula, area is of wire ....but in emf formula, area is of square loop)
15. 48:58 easy, but revise
16. 53:19 easy but Revise

[crookshanks]

NOTES -Q1 3:29 loop se lines are leaving and for the planes lines are entering ( sign changes in flux )

Q2-5:26 { relating the eqn of SHM ka concept with Emf equation/// Tmax and Tmin values }

16:58 - Complex language q ( darawna) here's how to deal with these/// Option Analysis

5. 20:57 POWER LOSS asa kadhtat / Average Power & Instan. Power // Use of AC equations

6. 22:24 Magnet completely inside - no change in flux // opposite direction of deflection while entering and leaving

7. 25:12 easy but confusing Language

11. 38:11 growth of current eq used in this way

[SHIVAPREETHAM]

EMI-REVISE💥
0:48[Conceptual]
5:00[Good Question]
12:44[Good Question]
18:38[Understand difference between Pint vs Pav]
21:33[Conceptual]
42:37[Do it Once Again]
50:10[Good Question]
Thank You Very Much Sir ❤

[rahulsumanixdrollno]

9:10 conceptually
12:11 revision
17:02 😢
21:16 integration
28:40 ✍️✍️✍️
33:30 calculation
35:17 to 55:47

[Diksha-_]

Self revision points 29:30 Resistivity di hai to resistance nikalna, L-30cm ka dyan de in mtr 0.3m, as sq bola to 4 sides he L /4, mm ka
10^-3, i =E/R bhulna nhi
33:03 tou =L/R, Lc k liye i =i०(1-e^-t/tou), e ki ^infinity-0 32:38 must see 35:00 avoid mistake 🚫
35:14 integration tab jb total bhi bole tu hamesha bhul ti hai 1-e^-t/tc ka integ..no.ko variable se n vice versa replace, , t-e^-t/tc /-1/tc or upr jane pr sign ka Dhyan dio
39:13 log lene pr e k power ka term as it is niche n - oppo jane pr reciprocal 37:06 redo sir k approach ko dekh
40:53 glti, 10 cm is 10^-1 or iska sq -2 tune directly 10^-4 likhdi thi
47:13 L oppose krega i so polarity ∆, resistor k across i jaha se flow hoga vo +lena, E= Ldi/dt Q mai diya hai rate mention kiya tha❗, ispe dhyan nhi diya tha, i dec so polarity vese chahiye jo inc kre i ko
52:49 dono k turns ko * bhulna nhi
21:05 chk, sign ∆ directn∆
36:38 redo 🚫..tujhe mistakes minimize krni hai!

[snehakumari]

2:00
5:14 SHM :)
14:05
20:01 use rms value
29:46 always put all the values at end
34:40 integration
50:04

[abysswalkerrrr]

Q1- 1:00 concept
Q2- 4:17 approach
Q4- 12:15
Q5- 17:05 approach
Q6- 21:30 conceptual q
Q11- 36:17 approach
Q15- 46:09 sign ka dhyaan rakkho
Q16- 49:47 assumption

[pakhi]

Emi ❤
Q10 33:41 limits put inc
Q11 36:50 inc substitution of current
Q16 49:49 differentiate flux, dont directly put emf

[JeeAspirant-vk]

17:00 do it again
20:13 power avg concept linked with ac
29:00 crazy calculation
49:37 vp-Vq (inductor+resistor)
55:24 two concentric ring problem

[AnuskaBanerjee-md]

SELF REVISION:
1. 0:45 Conceptual qs
2. 4:21 revise
3. 9:34 easy
4. 12:30 silly mistake
5. 17:08 revision
6. 21:30 conceptual
7. 23:20 easy
8. 25:10 revise
9. 30:08 calculative
10. 33:41 easy(integration error)
11. 36:15 revise
12. 39:20 easy
13. 42:00 easy(area vector)
14. 44:39 easy
15. 46:05 revise
16. 49:50 revise

[ganeshapandey]

0:48[Conceptual]
5:00[Good Question]
18:38[Understand difference between Pint vs Pav]

[anish.ee]

Revision
0:48
5:30
12:30 ( mutual induction)
17:35 ( joule heating)
23:40 ( Blv)
30:30 ( Lr circuit)

[sreedipsaha]

4:18 good question
15:00 do again
21:50 revise this again
26:13 very good approach
30:30 good approximation
47:22 good concept
41:47 must revise questions before exam

[ansh]

25:00 u mistakenly find E(inst) but questions was asking I(inst) so u must put an R in denominator....and thx for video ...revising😊exam on 25 ...❤️

[shreyakumari]

Qn1, nba=Enot, igauss =10^-4 Tesla, erms =enot /root2, 38:38 gd qn, E=Ldi/dt, 49:42 imp

[Mustafa-zneh]

17:32 alternate approach
26:31 A cross section area

[aedi]

9:07
14:43 area jisse flux hai
23:11 do this ques concept
26:39 area of cross sectional
35:41 again

[karandas]

Best resource channel for revise physics 😃❤️, I wish we got same for Math's and Chem as well 😌

[Ga-ib]

To revisit,
00:48, 17:10, 25:12, 30:27, 36:17, 49:45