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Questions and Answers
What is the direction of the electric field due to a positive charge?
If two charged spheres are connected by a wire, what happens to their potential?
What is the ratio of electric field of two charged spheres of radius R1 and R2?
To produce an electric field of 0.036 N/C just above the surface of a spherical conductor, how many electrons need to be put on it?
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What is the unit of charge in the given examples?
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What is the net electric field at the centre of a cube with eight equal charges +Q at its corners?
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What type of charge is present at the vertex A in Example 34?
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What is the potential at the centre of the uncharged conducting sphere due to the induced charge?
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What is the property of charge that is used to find the potential at the centre of the circle in Example 33?
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What is the charge at the surface of the atomic nucleus in Example 32?
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What is the direction of the electric field due to a point charge?
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What is the net induced charge on the uncharged conducting sphere?
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What is the charge at point C in Example 34?
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What is the potential at a point outside a concentric sphere due to the charges on the sphere?
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What is the principle used to find the net potential at a point due to multiple concentric spheres?
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What is the condition for the maximum force of repulsion between two charges Q1 and Q2 placed at a distance R from each other?
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If the initial force between two charges is F, and they are moved towards each other by a certain distance, what is the relation between the initial and final forces?
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If the ratio of the initial to the final force between two charges is 4:1, what is the ratio of the initial to the final distance between them?
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What is the effect on the force between two charges if the magnitude of one of the charges is doubled?
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If two charges of equal magnitude and opposite polarity are placed at a certain distance apart, what is the nature of the force acting between them?
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What is the physical quantity represented by 𝜀₀ in Coulomb's law?
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A dielectric medium is partially filled between two charges. What is the effective air separation between the charges?
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What is the direction of the force in Coulomb's law?
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What is the relative strength of the electromagnetic force compared to the gravitational force?
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What is the range of the nuclear force?
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What is the net force on a point charge due to four identical point charges placed at the vertices of a regular tetrahedron?
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A point charge +Q is placed at the centre of a regular hexagon of side L. What is the magnitude of the force on a point charge –q placed at one of the vertices of the hexagon?
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Two identical small spheres, each having charge +Q, are kept at a certain distance. What is the force between them?
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A point charge +Q is placed at the centre of a regular octagon of side L. What is the magnitude of the force on a point charge –q placed at one of the vertices of the octagon?
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What is the net force on a point charge due to three identical point charges placed at the vertices of an equilateral triangle?
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