Electricity - 01 | Electric Charges and Current | Chapter 12 | NCERT | Class 10 | Udaan

Download Lecture Notes From PhysicsWallah App/Website.

In this ongoing UDAAN Batch,Rakshak Dua Sir of PhysicsWallah is explaining to you about the (Electric Charges & Current) - 01.

In this lecture, we have covered these important topics:-
1:- Electricity
2:- Charges and it's Properties
3:- Quantisation of Charge
4:- Current
5:- MCQs

There are many other important topics PHYSICS that we are going to cover in upcoming videos for 2022 exam. Stay tuned with Physics Wallah Foundation.

Scheduled Syllabus For Udaan ( Class 10 ) released describing :-
which topics will be taught for how many days.
Available at PhysicsWallah App

Duration:-2 months (Dec 2020 - Feb 2021)
Free Batch Exclusive on our YouTube Channel : Physics Wallah Foundation - 9 & 10

Batch Details

1)Best Faculties across India for different Subject/Topics.

2)Complete & Relevant Syllabus Coverage of Class-10th within 2 Months- Fastrack Dec 18,2020-Feb 24,2021
3)Monday-Saturday : scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST)

Physics:Mon,Wed,Fri (4:00 p.m)
Chemistry:Tues, Thurs, Sat(4:00 p.m)
Mathematics:Mon, Tues, Wed,Thur,Fri,Sat(7:00 p.m)
Biology:Mon,Wed,Fri (6:00 p.m)
History & Geography: Wed,Thur,Fri,Sat (5:00 p.m)
Civics & Economics: Mon,Tue,Thur (3:00 p.m)

4)Scheduled Syllabus released describing :-
which topics will be taught for how many days.
Available at PhysicsWallah App

[rohitkumar]

All Formulas of Electricity:
1) I = Q/t
2) Q = ne
3) V = W/Q
4) V = IR
5) R = Rho x L/A
6)Resistance in Series: Rs = R1 + R2 + R3
7)Resistance in Parallel: 1/Rp = 1/R1 + 1/R2 + 1/R3 (» Reciprocal of R1+R2+R3)
8)H = V × Q
i) H = VIt
ii) H = I²Rt
iii) H = V²t/R
9) P = W/t
i) P = VI
ii) P = I²R
iii) P = V²/R
10) E = P × t

S.I. Units:
Current ( I ) - Ampere
Charge ( Q ) - Coulomb
Time ( t ) - Second
Potential Difference or Voltage ( V ) - Volt
Resistance ( R ) - Ohm Ω
Resistivity ( Rho ) - Ohm meter
Power ( P ) - Watt
Heat = Energy = Work = Joule

Measuring Devices:
Ammeter / Milli Ammeter - for measuring current (always connected in series)
Galvanometer - for measuring small/sensitive currents (we can also get the direction of the current)
Voltmeter - for measuring volts (always connected in parallel)
Ohm Meter - Measures the resistivity

Things to remember:
electron charge = (-1.6 x 10⁻¹⁹ C)
1Ampere = 1000mA
1 Killowaat = 1000W
1 Horse Power = 746W

[ananya]

Solutions of challenger problems:


Sol1) (c)- 3.2 × 10^-21 is not possible because when divided by 1.6×10^-19, it does not give a whole no. That means it's not divisible by 1.6×10^-19 and hence is not a multiple of it.


Sol 2) (a)- 1.6×10^-12
As we know,
I= Q/t
Also, Q= ne
=> I= ne/t
I= 10^7 × 1.6×10^-19 / 1
I= 1.6×10^-12 A

like if you find this helpful <3

[prabhatgupta]

it may sound weird but mai inse 2021 me padhta tha and tab mujhe zara bhi andaza nhi tha aake ki zindagi kaise honi wali...now im here in my drop yr and kal mera jee mains ka 2nd attempt hai, idhar wapis aake sukoon milta lagta jaise wapis vahi 10th wale days wapis aa gaye... i don't think so ye comment koi padhega aage kabhi lol :)

[kannadadubbedmovies]

Alakh sir ki umar itni lambi honge🙏🙏🙏
👇👇(how many love pw)

[itsmenoor]

Time spams of the video;
0:00 - 1:25 (Rakshak sir Intro)
1:25 - 2:20(About chapter)
2:20 - 4:15(Chapter overview)
4:15 - 8:15( What is electricity?)
8:15 - 11:32(History About electricity)
11:32 - 17:39(What is charge, it's unit, Denotion)
17:39 - 24:22( Quantization of charge)
24:22 - 27:48 (NTSE/NCERT Intex question)
27:48 - 39:02 (What is charge, it's formula)
39:03 - 42:07(Ncert example 12.1)
42:08 - 50:01( Illustration NTSE
and challenging problems)
50:01 - 50:06 (Outro)

Thankyou

[dileryadavv]

Agar India me aap jaise guru milenge to hamara desh bahut aage jayega .
Love Physics wallah 🙏

[aryan]

I'm from 2023-24 batch and this video never gets old❤

[pankajshrivastava]

I can't believe ki hum itne der tak padhe woh itne ache se ki sab samjh aaya aur numerical toh omg

[asifahmedshaik]

Physics Wallah Foundation - 9th & 10th itne saal chale
👇👇

[daringbaazcmmener]

Îndian Årmy💂 is saving our Àlakh pandey sir is sàving our future 🙏
A great salute to both of legends🤘
Love from: ««ÜTTÀRÀKHÅÑD»»

[zefaitro_gaming]

Sir your teaching is insane😊 even students preparing for boards 2024 watch your videos

[manas.mk]

I am from new 10th batch 2022 -23
Please like who all have secured above 85% after studying from Rakshak Sir... I will feel his 👍👍👍👍

[tanyasingh]

2020 was the worst year but Alakh sir has made it for students the Best
#RESPECT

[DivyaPathak-ifqh]

I am from 2023-24 batch and this video never gets old 🥰🥰🥰
Sir old is gold ❤❤❤❤

[lordmorpheus]

woww the besttt physicss teacher for class 10th!!

[rishabhrajnov]

21:54 ...aise nhi chalega ...aur like thoko mahakal k naam se..what a wonderful teacher

[yogendrakatare]

Answers of the homework questions
Q1. C and D as electron number cannot be of the form 10^-2 or 10^-3
Q2. Option A formula ne/t = I

[annihilatinganonymous]

Imagine getting personal tutions from him!!!😍😍

[tanishaahlawat]

Kar Bhala ..
To ho Bhala....
I m watching physics wallah..😉😉👍

[idlarsaeed]

It is so... Interesting to listen him
"Maja aaagay padh kei"