Electric Charges and Fields questions
340 published questions with worked solutions.
- Under the influence of the Coulomb field of charge +Q, a charge −q is moving around it in an elliptical orbit. Find out the...
- A solid sphere of radius R has a charge Q distributed in its volume with a charge density = r^a, where κ and a are constants and...
- If a charge q is placed at the centre of the line joining two equal charges Q such that the system is in equilibrium then the...
- If the electric flux entering and leaving an enclosed surface respectively is _1 and _2, the electric charge inside the surface...
- Two spherical conductor B and C having equal radii and carrying equal charges in them repel each other with a force F when kept...
- Four charges equal to -Q are placed at the four corners of a square and a charge q is at its centre. If the system is in...
- A charged oil drop is suspended in a uniform field of 3 10^4 V/m so that it neither falls nor rises. The charge on the drop will...
- Two point charges +8q and -2q are located at x = 0 and x = L respectively. The location of a point on the x axis at which the net...
- Let P(r) = Q R^4 r be the charge density distribution for a solid sphere of radius R and total charge Q. for a point ' p ' inside...
- A charge Q is placed at each of the opposite corners of a square. A charge q is placed at each of the other two corners. If the...
- Let there be a spherically symmetric charge distribution with charge density varying as (r) = _0 ( 54 - rR ) upto r = R, and (r)...
- Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of 30° with each other. When...
- Two identical charged spheres suspended from a common point by two massless strings of length l are initially a distance d(d <<...
- If the charge on the body is 1 nC, then how many electrons are present on the body?
- When 10^ 14 electrons are removed from a neutral metal sphere, then the charge on the sphere becomes
- If 10^ 10 electrons are acquired by a body every second, the time required for the body to get a total charge of 1 C will be
- The electrostatic force of repulsion between two positively charged ions carrying equal charge is 3.7 10^ -9 N, when they are...
- There are two charged identical metal sphere A and B repel each other with a force 3 10^ -5 N. Another identical uncharged sphere...
- Two spheres carrying charges +6 , C and +9 , C separated by a distance d, experiences a force of repulsion F. When a charge of -3...
- Four charges equal to -Q are placed at the four corners of a square and a charge q is at its centre. If the system is in...
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