Articles in JEE 2016

As we have studied the gravitational potential due to a solid sphere at various points in surrounding, and inside of the sphere we can use the same results for the gravitational potential due to Earth. Using these expressions, we can find the gravitational potential energy of any mass located at a point anywhere on Earth. […]

A sphere with uniform mass distribution is a symmetrical body. Due to this symmetry, the gravitational field in its surrounding can be considered in radially inward direction just like a point mass. We can discuss the Gravitational Potential due to uniform hollow and solid spheres. Gravitational Potential due to a Hollow Sphere In surrounding region […]

In the surrounding of a point charge when a unit point mass is brought from infinity to any point work done is calculated by line integral of gravitational field within limits from infinity to that point. This work will be the gravitational interaction energy of a unit mass or the gravitational potential at that point. […]

In the region of the Gravitational Field at any point in space, a characteristic property is defined, called the Gravitational Potential, which is defined as the gravitational interaction energy of a unit mass, placed at that point, or alternatively defined as the work done in bringing a unit mass from infinity to that point, against […]

Interaction Energy of any system of particles is the work done in assembling the system from the zero energy state against the interaction forces of the system. In case of gravitational interaction energy of a system of particles we consider zero energy state when the particles are at very large separation or we consider at […]

There are different situations on which a variety of problems can be framed for analysis of Gravitational Field Strength due to Earth. In most of the problems one or more factor which is affecting the gravitational field strength due to Earth is considered and taken into account in the analysis. There may be some situations […]

We discussed that value of gravitational field strength at different locations on Earth Surface, at an altitude or at a depth are different. Similarly value of g is also affected by other factors like shape of Earth and rotational motion of Earth. Effect on value of g due to shape of Earth: In analysis of […]

Earth being considered like a solid sphere, we can use the result of gravitational field strength of a solid sphere for obtaining the field strength due to Earth at various locations on surface of Earth, inside Earth, and at some altitude above the Earth surface. Like the case of a solid sphere, outside the surface […]

Gravitational Lines of forces are imaginary lines in the region of gravitational field which gives information about the net gravitational field in the region at any point. The information includes the direction of gravitational field vector as well as the idea about strength of the gravitational field strength. At any point in a region of […]

Null Point between Earth & Moon: This is the point on line joining the centres of Earth & Moon where the Gravitational Field is zero. See the example video below to understand finding the null point between two bodies: Gravitational Field due to Subtractive Bodies: When from a body one part is removed then the […]