JEE

The fee structure for all BTech courses is are same, even if you are a CSE student or a biotechnology student, which is INR 2.36 lacs per annum.

According to previous year trend you are eligible for all branches in DTU on this rank.

2024  DTUs CSE 5th round cut-off was 12590.

The energy stored in a sytem of charges due to their positions in the electric field is called the electrostatic potential energy. The energy for the two charges q1 and q2 separated by distance r is:

The energy is positive if both charges are of the same sign and it is negative if for the opposite signs. When a system has over two charges, the energy is calculated by the sum of energies of all unique pairs. This concept helps analyze behaviour and stability of charged systems.

When placed in an electric field, polarization is the alignment of dipole moments in a dielectric material. In a dielectric, molecules are randomly oriented. When an electric field is applied, it creates induced dipoles by slight shift in molecules from positive to negative. This weakend the net field, reduces the internal electric field and allow more charge storage. The polarization is quantified as:

Here, V is the volume, Pm is the total dipole moment. The polarization is a key concept in understanding the dielectric behavior in capacitors and it leads to increased capacitance.

In an electric field, energy density is the amount of energy stored per unit volume . For a linera or vacuum dieletric, it is given by:

E is the electric field magnitude and ?0  is the permittivity of free space. 

No, You have compulsory maths ( pcm or pcmb ) in 11th and 12th for appearing in JEE main exam .

It's eligibility criteria for appearing in JEE Mains exam.

Where every point has the same electric potential, it is an equipotential surface:

The main characterstics include:

• Two equipotential surfaces never intersect.
• The electric field is always perpendicular to an equipotential surface.
• Equipotential surfaces are parallel planes in a uniform electric field.
• If the surfaces are closer, the field in that region will be stronger.