ALTERNATING CURRENT 👉PYQ's (Last 10 Years Previous Year Q.) for 2025💥 Class 12 Boards 2025
HTML-код
- Опубликовано: 5 фев 2025
- Download Arvind Academy app
(Google Play) Download Arvind Academy app bit.ly/2kTWbkj
& See in the store section.
Join Free Arvind Academy Telegram Channel
👉t.me/arvindaca...
important numericals of physics class 12
important numericals
Alternating Current
Previous Year Questions on Alternating Current for Class 12 Physics NCERT for CBSE Boards 2025
NCERT Class 12 Physics Chapter 7 Alternating Current
PYQs on Alternating Current for 2025
PYQs of Chapter 7 Alternating Current
PYQs of NCERT Chapter 7 Alternating Current of Class 12 Physics
NCERT Class 12 Physics previous year question
Last 10 years Class 12 Physics PYQ for CBSE Boards 2025 Exams
Class 12 Board Exam 2025
Last 10 years PYQ's CBSE Class 12 Physics PYQ for CBSE Boards 2025 Exams
Class 12 Physics Last 10 years Previous year Questions
Class 12 Physics Last 10 years PYQ's
#arvindacademy #class12physics #pyq #physicspyq #alternatingcurrent
Timestamps
00:03 - Video discusses methods for Alternating Current exam preparation.
00:59 - Learn effective methods for exam preparation with 2024 PIQ included.
02:34 - Join Arvind Academy for comprehensive physics learning and video solutions.
03:47 - शिक्षा के लिए Arvind Academy ऐप का उपयोग करें।
05:46 - Explaining a quarter cycle and its related concepts.
06:56 - Ideal inductors do not dissipate power in AC circuits.
09:31 - Understanding LCR circuits and their component relationships.
10:55 - Inductor in AC circuits does not consume power.
13:10 - Important questions on transformers for 2024 exams.
14:05 - Transformers require equal magnetic flux in primary and secondary coils.
16:15 - Understanding Alternating Current (AC) Characteristics
17:09 - Alternating current has periodic directional changes unlike direct current.
19:04 - Current leads voltage in capacitive circuits.
20:13 - Capacitive circuit analysis shows relationship between variables X and R.
22:33 - Impedance behavior in resonance circuits is analyzed through frequency changes.
23:32 - Understanding resonance impacts voltage and current relationships.
25:23 - Understanding series connection of resistance and capacitor in AC circuit.
26:27 - Understanding current calculation in a 200V circuit with RMS values.
28:46 - Voltage drop calculations across resistors and capacitors.
29:58 - Exploring voltage paradox in AC circuits with algebraic sum.
31:55 - Understanding vector direction and resulting voltage calculations.
33:11 - Voltage drops across resistance and capacitance have a 90-degree phase difference.
35:17 - Understanding capacitor behavior and RMS current calculations.
36:23 - Calculating voltage drop using RMS values.
38:52 - Iron core influence on electric bulb brightness explained.
39:46 - Removing the iron core increases current and bulb brightness.
41:48 - Understanding RMS value of voltage measurement.
42:49 - Combining vectors using Pythagorean theorem results in a perpendicular outcome.
44:55 - Understanding capacitive reactance and its mathematical definition.
45:53 - Capacitive reactance varies inversely with frequency changes.
48:04 - Calculation of reactance for an ideal inductor.
49:07 - Inductance and frequency relationship analyzed with calculations offered.
51:16 - The current leads the voltage in a capacitive AC circuit.
52:29 - Graph showing voltage and current variation over time.
54:43 - Explaining the relationship between frequency and phase diagrams.
55:51 - Understanding projections and phase diagrams for effective problem-solving.
57:46 - Calculating resultant voltage using impedance in circuits.
58:47 - Understanding resonance in an LCR circuit with AC source.
1:01:15 - Understanding AC circuit analysis with resistors and capacitors.
1:02:25 - Calculation of impedance and current in an electrical circuit.
1:04:33 - Introducing a dielectric slab increases capacitor capacitance and current.
1:05:30 - Increasing resistance causes bulb brightness to decrease.
1:07:44 - Calculating quality factor and frequency for a circuit.
1:08:53 - Understanding phase difference in series LCR circuits.
1:11:24 - Understanding dominant capacitor circuit behavior and phase differences.
1:12:26 - Understanding the relation between angle and current in circuits.
1:14:53 - Explains power factor, phase difference, and AC voltage benefits.
1:16:09 - AC transmission minimizes energy loss and allows voltage adjustment over long distances.
1:18:41 - Understanding parallel combinations of inductors and their values.
1:19:51 - Calculating the value of C1 in circuit parameters.
1:22:12 - Transformer core lamination reduces eddy current effects.
1:23:08 - AC circuits exhibit current-frequency relationships impacting power loss.
1:25:23 - Understanding the relationship between voltage, resistance, and inductance in a circuit.
1:26:26 - Voltage calculations using AC and DC principles.
1:28:57 - Effective study techniques ensure no questions are answered incorrectly.
1:30:01 - Arvind Academy offers quality physics content and encourages subscriptions.
Thanks sir for your efforts.I have a question sir about the mid term exam i and my friend have this problem that which vedios should I watch means first example one shot or pure gold series then pyqs..... So on please tell me sir.I will appreciate your efforts.
Bro first go and watch english oneshot 😂😂😂😂
best teacher ever, no joke, he is singlehandedly saving our grades
Best video for pyq with explanation
Glad it helped
@ArvindAcademy sir we need more videos like this with full EXPLANATION
Thanks sir for your pyq series very helpful 💗✌️
sir you taught so well but sorry me friend ko share nhi kar rha bcoz fir boards me he'll score good marks.
😂😂😂😂
I can understand
so gaddaar bro🤣🤣🤣
bhejde bhai usko, selfishness me kuch nhi rakha, sabka bhala kro
20:49,30:47 total voltage =√VR² √(V2inductor - V1 capacitance)
. Source Voltage and Current in same phase = Resonance
1:03:28 sir root over 900+1600 = 2500 = 50A hoga so Irms 4A hona chaiye hai lekin option galat hai
4:05 Start
thank u soo much sir ☺️
Now, i am confident in this chapter
Great 👍
Are these numericals enough for boards?
Please sir reply this video's pdf is not available on app
Hats off to his efforts 🙌
Thank you sir...❤
This is very helpful for me..
Done 😊
Lecture starts at 4:06 !! thank me later.
Give me your insta id to thank you
Thanks 😊
no thanks
Insta milega ????
@@25krishnakumar52 bhakk 😂
Such a nice explanation sir 🎉❤😊
Agar cbse k syllabus mei sirf lcr circuit hai toh lr,cr,lc se ques kyu hai phir???
Really very helpful sir thankyou so much ❤❤
Most welcome
Sir generator pr questions nhi hai ?
Deleted
Sir ji ye pdf kaha milega ya slide jo aapne padhaya
Thankyou so much sir for these questions 🙏🙏
Very best teacher
24:18 tan(phi) = Net Impedance/R , if R = net impedance. phi = 45°. Hence correct
Inductor dominating circuit where current lags not leads so hence incorrect 🌬️
True Thnks @@aditinegi2092
@@aditinegi2092None dominating circuit,Clearly says XL-XC = R and you can check this on Google!!!
thankyou sir it helps a lot in scoring
Bass overall 90 ban jaaye yaar.....😅
Please someone tell me where I can get pdf it's not in the app
Yes bro pdf nhi mil raha
thankyou so much sir, this video just boosted my confidence
Hey 👋🏻
Your smile makes my day😍
Sir Thankyou so much for this amazing lecture❤
Amazing teaching sir this question solving helped me lot in my exams and i scored 87 out of 100 in school exams thankuu sir...i will tell my all friends who will come or studying in class 12 to study from youu....God bless you..
sir 1:13:45 wont phi be -ve value because Xc> X L and current leads voltage?
Sir you give us series of ncert questions, pyq
How i can thank you
Sir your are the best 💓
thnkyou sir🥰
Yaar abhi bhi numerical me problem ho rha hai....??😢
I had completed my complete class 12 phy syllabus by arvind sir and now i am watching this amazing and superb pyq series of arvind sir.. Overall i can say i had used Arvind sir for my phy in class 12..Phy paper is on 21 February..then I will give u all review of my paper and i know i will say proudly that sir beautiful way of teaching and superlative easy language and explanation had helped me to score above 60 in physics...
I will suggest all the junior to follow arvind sir for physics..He is a gem 💎 for us... and his beautiful laugh and smile motivate us
Thnx u sir 👍
Sir rc lc aur rl toh syllabus me nahi hai na
Sir aap ki smile 😊😊
Sir ur the best 👌
Answer is (b) 24:30
Nice explanation
Best sir 🤞
No one can give such type of content on RUclips
If this helps me score more than 58 out of 70 in my next pre board exam i would surely comment here again to thank you sir..
Usually in our class nobody scores more than 55 in physics exams..
Did this help?
What happened?
I think it did not help😂😂😂
Lol
sir give me procedure how ido questions only 15 days left for exams...mujhe bas video dekhni chaiye ya book s questions kru pls sir tell me
NCERT solved examples bhi karle
Ncert eg+back exercise+ pyq chapter wise + at last whole syllabus pyq thats what im doing (btw abhi padhna start kiya hai lol)
SIR YOU ARE LEGEND OF PHYSICS🔥🔥🔥🔥🔥
THANK U SIR
AWESOME VIDEO ❤❤❤
Thanks guru ji 🎉🙏🏻
Thanku sooo much sir bcz of uh my ac chapter became so strong
24:13 shouldnt b be correct?
tan phi = 45 when R/R = 1
tan inverse of 1 is pi/4
Nope here Xl -Xc is written which means its the case of Xl>Xc(inductor case) and in inductor voltage leads and current LAGS so correcting above statement it should go like this current lags the voltage by 45°.....🙆🏻
Thanks@@aditinegi2092
Very good 👍
sir please upload class 12 ch 8 pyqs i will be having my mid term on 7 sep..it would be a great help for me🙏
Gorgeous explanation
29:44 Xc= 40 ohm not 50 ohm 50 is the impedance
Yes
Last me correct to kiye sir
Thank you so much sir ☺️☺️
51:00
43:55 The resultant taken is wrong .Bcz
According to triangles law the resultant is the third side if two vectors are in SAME ORDER THEN THE RESULTANT IS IN OPPOSITE ORDER 😅😊❤
Sir ji bhaaut gajab padhte h aaap❤
Sir iska pdf app par nahi hai
sir jo question apny 23;10 minute py karaya hai graph sy related wo galat hai
What is wrong in it that i can't see
I personally don't comment but sir your creativity brings learning to life
You have covered each and concept behind the question
"You made this easy to understand sir
"Thank you for being the best mentor, guider, and most importantly, a friend"
Sir i am following your all pyq series and i believe i will definitely score well ...❤
17:15 correct reason is that T axis is breaking, Time has to remain constant but it isnt.
thanks sirrr you are such a underrated gem 🥰
Hello Ya video ma Jo questions sir kare ra ha wo rbse board ka ya cbse board ka......,............ Koi ne bata do
i m gonna do of all chps :) nice videos and questions
Sir you safe us lots of time
thank you so much sir.
you are one of best teachers i have ever seen.
Thanks👍Kindly share this Video to your friends to help them out & also to motivate me ❤❤ Best of Luck🎯🎯 Beta ji 👍👍
ARVIND ACADEMY
Sir itna sufficient hai na boards ka preparation ka liye . Please sir batiye ki bus itna qustion kar lenge toh ho jaiye ga n koi sample papers lene ki jarurat nhi n h
No
Sir you are the best teacher , I can ever have❤
Sir question series ka video bhi banaiye 2025 ki not pyq
14:50 agr mag. Flux b same rha to induction kese ayega.....kyuki isky principle ke according ek m Flux change hoga or jiski vjah se dusre m current induce hoga . Am confused can anyone help??
Bhai magnetic flux same rhega mgr change in magnetic flux badlega
❤️ you uncle type sir for this great expln
HAPPY TEACHERS DAY SIR 😍😍
Uh are awesome sir 😉
Thank you so much sir
Sir class notes update kor dijiya is chapter ka app pe
Aapke app per pdf nhi mil Raha hai
24:32 (b is incorrect because i lags not leads)
33:26
I think both ( a ) (b) are correct...
Nope only ( a )correct and reason u gave is correct
Em waves ke pyq kb tk aayenge ???
Thankyou
sir please sir app me kuchh pyq bhi daal do
kyuki sir practice krane ke liye dusre pe jaate hai toh time waste hota hai
Sir pdf kaha milega
youtube's most qualitative pyq video with great explanation at same time
Pdf is not there sir
Thank you sir
18:05 , is that question from our syllabus??
Too good sir, you literally saved me 😭😭🙏🏻
hey is this enough for this chapter?
Pdf kha pe milega
Starting me bataya h dekh le
13:46 1:22:42 1:27:33
24:30
33:45
1:08:00
1:20:00 GOOD QUES
Sir in pyq ka pdf hi nhi milta
Dn this dont know what going to happen in boards 🥲🥲😔😔
48:33 when i solved ur given value ans 3768 not ur written one ( anyone tell )
Bro aapne formula ye lgya h shyd X=2.pie.F.C is formula se aara h 3768 agr ise (ryt formula is 1/2.pie.F.C)1/3768 krenge to sir vala answer hi aa rha h.....hope it helped ☺️
Yup U forgot to do 1/3768 = 265×10-⁶ = 265uF.....
@Shabnam-ib5ui tqsm
@@aditinegi2092 oh tqsm
सबसे अच्छे शिक्षक, कोई मज़ाक नहीं, एक हाथ से हमारे ग्रेड बचाते हुए
bro this video is full of ads
1:23:56 pe sunaa tum logo ne kuch lgtaa hai sir ke pet me gas bni hui thi😂😂
😂
Thank you sir,,,you're super cute
Sir waves and Ray optics bhi daldooo plz plzzz exams h sir
8:51
20:00
23:16
31:29
44:53
Sir ye kisi bhi board ke bache ke liye h