Numerical Problems | Chapter 10 | Electrostatics | Physics 11th | National Book Foundation | FBISE

Click on the link below for latest videos.
https://whatsapp.com/channel/0029VaGr...
10.1 Three point charges located at the corners of a right triangle as shown in figure, where 𝒒_𝟏=𝒒_𝟑=𝟓.𝟎𝟎𝝁𝑪. 𝒒_𝟐=−𝟐.𝟎𝟎𝝁𝑪, and 𝒂=𝟎.𝟏𝟎𝟎𝒎. Find the resultant force exerted on 𝒒_𝟑.
10.2 Determine electric field at the surface of a sphere of radius 𝟑.𝟎𝒎 while the point charge of 𝟗𝝁𝑪 is placed at the centre.
10.3 The electric field at a point due to a point charge is 26N/C and the electric potential at that point is 13J/C. Calculate the distance of the point from the charge.

When an air passenger touches the knob of the toilet door during a flight, he may get an electric shock. Why it is so?
How will the radius of a flexible ring change if it is given positive charge?
Write some applications of electrostatics in real life.
What are the limitations of coulomb’s law?
If two points are at the same potential, are there any electric field lines connecting them?
What is the difference between electric field and electric field strength?
What are ferrofluids?
Explain coulomb’s law for free space?
What is electric field strength? Explain with the help of examples.
What is meant by the term potential gradient? Show that E=∆V/∆r.
Describe the motion of a charged particle in a uniform electric field.
What is ferrofluids? Explain.
Charges of magnitude 100 microcoulomb each are located in vacuum at the corners A, B and C of an equilateral triangle measuring 4 meters on each side. If the charge at A and C are positive and the charge B negative, What it the magnitude and direction of the total force on the charge at C?
What is the magnitude of a point charge that would create an electric field of 1.00N/C at points 1.00m away?
Consider a point charge +q placed at the origin and another point charge -2q placed at a distance of 9m from the charge +q. Determine the point between the two charges at which electric potential is zero.
An object having a net charge of 24μC is placed in a uniform electric field of 610N/C directed vertically. What is the mass of this object if it floats in the field?
10.1 Three point charges located at the corners of a right triangle as shown in figure, where 𝒒_𝟏=𝒒_𝟑=𝟓.𝟎𝟎𝝁𝑪. 𝒒_𝟐=−𝟐.𝟎𝟎𝝁𝑪, and 𝒂=𝟎.𝟏𝟎𝟎𝒎. Find the resultant force exerted on 𝒒_𝟑.
10.2 Determine electric field at the surface of a sphere of radius 𝟑.𝟎𝒎 while the point charge of 𝟗𝝁𝑪 is placed at the centre.
10.3 The electric field at a point due to a point charge is 26N/C and the electric potential at that point is 13J/C. Calculate the distance of the point from the charge.
10.1 What is the magnitude of the force of attraction between an iron nucleus bearing charge 𝒒=𝟐𝟔𝒆 and its innermost electron, if the distance between them is 𝟏×〖𝟏𝟎〗^(−𝟏𝟐) 𝒎.
10.2 A conducting sphere carries a charge of 𝟐𝟎𝟎𝝁𝑪. Find the electric field intensity at a distance 𝟔𝟎𝒄𝒎 from the centre of the sphere.
10.3 Show that 𝒗𝒐𝒍𝒕/𝒎𝒆𝒕𝒓𝒆=𝒏𝒆𝒘𝒕𝒐𝒏/𝒄𝒐𝒖𝒍𝒐𝒎𝒃