JEE Main Electrostatics questions
10 Physics questions on Electrostatics as asked in JEE Main, newest first. 5 come with a worked solution.
- In a cuboid of dimension 2L × 2L × L, a charge q is placed at the center of the surface S having area of 4L^2. The flux through the opposite surface to S is given by
2023 · with solution
- If two charges q_1 and q_2 are separated with distance 'd' and placed in a medium of dielectric constant K. What will be the equivalent distance between charges in air for the same electrostatic force?
2023 · with solution
- A parallel plate capacitor has plate area 40 cm^2 and plates separation 2 mm. The space between the plates is filled with a dielectric medium of a thickness 1 mm and dielectric constant 5. The capacitance of the system…
2023
- A point charge of 10 μC is placed at the origin. At what location on the X-axis should a point charge of 40 μC be placed so that the net electric field is zero at x = 2 cm on the X-axis?
2023 · with solution
- A uniform electric field of 10 N/C is created between two parallel charged plates (as shown in figure). An electron enters the field symmetrically between the plates with a kinetic energy 0.5 eV. The length of each…
2023
- A point charge q_1 = 4q_0 is placed at origin. Another point charge q_2 = -q_0 is placed at x = 12 cm. Charge of proton is q_0. The proton is placed on x axis so that the electrostatic force on the proton is zero. In…
2023
- A parallel plate capacitor with air between the plate has a capacitance of 15pF. The separation between the plate becomes twice and the space between them is filled with a medium of dielectric constant 3.5. Then the…
2023 · with solution
- A capacitor has capacitance 5μ F when it's parallel plates are separated by air medium of thickness d. A slab of material of dielectric constant 1.5 having area equal to that of plates but thickness d/2 is inserted…
2023
- A stream of a positively charged particles having q/m = 2 × 10^11 C/kg and velocity v_0 = 3 × 10^7 i m/s is deflected by an electric field 1.8j kV/m. The electric field exists in a region of 10 cm along x direction. Due…
2023 · with solution
- The bob of a simple pendulum has mass 2g and a charge of 5.0μC. It is at rest in a uniform horizontal electric field of intensity 2000 V/m. At equilibrium, the angle that the pendulum makes with the vertical is (take g…
2019
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