Coulomb's Law | Chapter 10 | Electrostatics | Physics 11th | National Book Foundation | FBISE

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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.

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Write some applications of electrostatics in real life.
What are the limitations of coulomb’s law?
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What is the difference between electric field and electric field strength?
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Explain coulomb’s law for free space?
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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