jee_main_2025_07_april_evening - Electrostatics Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #1 Electrostatic Shielding
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The outer body of an air craft is made of metal which protects persons sitting inside from lightning-strikes. Reason (R): The electric field inside the cavity enclosed by a conductor is zero. In the light of the above statements, chose the most appropriate answer from the options given below:
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QUESTION #10 Torque on a Dipole
A dipole with two electric charges of 2 µC magnitude each, with separation distance 0.5 µm, is placed between the plates of a capacitor such that its axis is parallel to an electric field established between the plates when a potential difference of 5 V is applied. Separation between the plates is 0.5 mm. If the dipole is rotated by 30circ from the axis, it tends to realign in the direction due to a torque. The value of torque is : [cite: 58, 59, 60]
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QUESTION #21 Dielectrics and Capacitance
A parallel plate capacitor has charge 5×10⁻⁶~C. A dielectric slab is inserted between the plates and almost fills the space between the plates. If the induced charge on one face of the slab is 4×10⁻⁶~C then the dielectric constant of the slab is _______. [cite: 183, 184]
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QUESTION #24 Electric Flux
The electric field in a region is given by E = (2 i + 4 j + 6 k) × 10³N / mathrmC . The flux of the field through a rectangular surface parallel to x-z plane is 6.0Nm²C⁻¹ . The area of the surface is __________ cm² . [cite: 195, 196]
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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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