DefinePK

Description

Welcome to cap. Here are the solutions of the problem number 1, 2,3,4 of chapter11 physics 12 federal and KPK board.


00:12 Problem 11.1
What is the magnitude of the force of attraction between iron nucleus bearing charge q equal to 26 e and its inner most electron, if the distance between them is 1× 10^-12 metre.


04:18 Problem 11.2
Charges 2uc, 3uc and 4uc are placed in air at the vertices of an equilateral triangle of sides 10cm. What is the magnitude of resultant force acting on 4UC charge.

16:37 Problem 11.3
A charge q is placed at the centre of the line joining the two charges, each of magnitude Q. Prove that the system of three charges will be in equilibrium if q=-Q/4.

21:05 Problem 11.4
Two equal and opposite charges of magnitude 2×10^-7C are placed 15 cm apart.what is the magnitude and direction of electric field intensity at a point mid-way between the charges? What force would act on a proton placed there.

#problems#numericals#physics12#electrostatics#word problems#easy solution#federal board #kpk board#

Tap the following links for other lectures of chapter11

1 introduction to electrostatics
https://youtu.be/d8DjHMvcfRw

2 Coulomb'law
https://youtu.be/x9X5WFby0-Q

3 electric field intensity
https://youtu.be/KmDDegJvrbY

4 electric field lines
https://youtu.be/C9wnLJ8zm3M

5 applications of electrostatics
https://youtu.be/ZEq1_auy98E

6 electric flux
https://youtu.be/HOP3qM6t9EA

7 electric flux through a closed surface enclosing a charge
https://youtu.be/NzI38vCLF7I

8 guass's law
https://youtu.be/FzVSyi7R020

9 applications of Guass's law
https://youtu.be/SFbW2Jg2zBQ

10 electric potential difference
https://youtu.be/TveC7w869fM

11 absolute electric potential
https://youtu.be/G9dpGcfbR0w

12 what is potential gradient
https://youtu.be/JUnZ-wz8sT4

13 capacitors
https://youtu.be/A8FSSXnNRhc

14 combinations of capacitors
https://youtu.be/sfUo08NdVC8

15 electric polarization in capacitors
https://youtu.be/ezRr3AQxcwI

16 energy stored in capacitors
https://youtu.be/zLsf1xLI7I0

17 charging and discharging of capacitors
https://youtu.be/sHWIGcggG58

18 problems 11.1, 11.2, 11.3, 11.4
https://youtu.be/WoCxTm6pqHo

19 problems 11.5, 11.6, 11.7, 11.8
https://youtu.be/hYgsN1RpZNw

20 problems 11.9, 11.10
https://youtu.be/mEYryHShqY8

21 Problems 11.11, 11.12
https://youtu.be/HTg0LPOWOJo

22 problems 11.13, 11.14
https://youtu.be/ETydiWkBmCk

23 problems 11.15, 11.16
https://youtu.be/7ncUE4NP1Y4

24 problems 11.17, 11.18
https://youtu.be/fhEmyWRSD0s

25 conceptual questions part 1
https://youtu.be/2FL0-afV9Xw

26 conceptual questions part 2
https://youtu.be/qCn7NTKcBpM

special lecture for PCS exam
Maxwell's equations
https://youtu.be/8GGYO3RQUMI