Electric Charges and Fields questions
340 published questions with worked solutions.
- A charge Q is enclosed by a Gaussian spherical surface of radius R. If the radius is doubled, then the outward electric flux will...
- Two identical charged spheres suspended from a common point by two massless strings of lengths l, are initially at a distance d...
- Suppose the charge of a proton and an electron differ slightly. One of them is -e, the other is (e + e). If the net of...
- An electron falls from rest through a vertical distance h in a uniform and vertically upward directed electric field E. The...
- A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre
- Two parallel infinite line charges with linear charge densities + C/m and - C/m are placed at a distance of 2R in free space....
- Two point charges A and B, having charges +Q and -Q respectively, are placed at certain distance apart and force acting between...
- A uniformly charged conducting sphere of diameter 14 cm has surface charge density of 40 m^ -2 . The total electric flux leaving...
- Two equal point charges 'q' each exert a force 'F' on each other, when they are placed distance 'x' apart in air. When the same...
- Three charges 2q, -q and -q are located at the vertices of an equilateral triangle. At the centre of the triangle
- A spherical rubber balloon carries a charge, uniformly distributed over the surface. As the balloon is blown up and increases in...
- In the electric flux entering and leaving an enclosed surface are _1 and _2 respectively, the electric charge inside the surface...
- Three charges q, Q and + 4q are placed in a straight line of length 'd' at points at distances 0, d 2 and d respectively. In...
- Two point charges q_1 and q_2 are ' ' distance apart. If one of the charges is doubled and distance between them is halved, the...
- Identify the WRONG statement in the case of electric field lines
- A charge Q is placed at the center of a cube. If _0 is the permittivity of vacuum then the flux through one face and two opposite...
- Two small identical metal balls are equally charged and placed at a fixed distance away from each other. They experience the...
- The charges 2q, -q, -q are located at the vertices of an equilateral triangle. At the circumference of the triangle
- The electric flux over a sphere of radius 'r' is ' '. If the radius of the sphere is doubled without changing the charge, the...
- If the electric flux entering and leaving an enclosed surface is _1 and _2 then charge enclosed in the surface is ( _0 =...
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