jee_main_2026_23_january_evening - Electrostatics Topics

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QUESTION #31 Electric Dipole
Two shorts dipoles (A, B) , A having charges pm 2mu C and length 1 cm and B having charges pm 4mu C and length 1 cm are placed with their centres 80 cm apart as shown in the figure. The electric field at a point P, equi-distant from the centres of both dipoles is ____ N/C. {{IMG1}}
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QUESTION #32 Electrostatic Potential Energy
Two charges 7mu C and -2mu C are placed at (-9,0,0) cm and (9,0,0) cm respectively in an external field E=fracAr^2hatr , where A=9times10^5mathrmN/C.m^2 . Considering the potential at infinity is 0, the electrostatic energy of the configuration is ____ J.
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QUESTION #34 Capacitance with Dielectrics
A parallel plate capacitor with plate separation 5 mm is charged by a battery. On introducing a mica sheet of 2 mm and maintaining the connections of the plates with the terminals of the battery, it is found that it draws 25% more charge from the battery. The dielectric constant of mica is ____.
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JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
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