Doubtify – JEE Ki Taiyaari, Simple Bhasha Mein

  ⚙️ de-Broglie Wavelength vs Time – Charged Sheet Problem | Doubtify JEE 📌 Question: An electron is released from rest near an infinite non-conducting sheet of uniform negative charge density (−σ) . The rate of change of de-Broglie wavelength associated with the electron varies inversely as the nᵗʰ power of time . 👉 Find the numerical value of n . 📸 Question Image:

⚡ Gauss’s Law – Flux Through a Cube | JEE Physics | Doubtify 📌 Question: An infinitely long wire has uniform linear charge density λ = 2 nC/m. The net flux through a Gaussian cube of side length √3 cm, if the wire passes through any two corners of the cube, that are maximally displaced from each other, would be x Nm²C⁻¹, where x is: 🖼️ Question Image:

  ⚡ Surface Charge Distribution on Irregular Conductor – Electrostatics | JEE Physics | Doubtify JEE 📌 Question: Electric charge is transferred to an irregular metallic disk as shown in the figure. If the surface charge densities at four points are σ₁, σ₂, σ₃, and σ₄ , then which of the following options is correct ?

  ⚡ Surface Charge Density After Contact – Electrostatics | JEE Physics | Doubtify JEE 📌 Question: Two metal spheres of radius R and 3R have the same surface charge density σ . They are brought in contact and then separated . After separation, let the surface charge densities be σ₁ (for smaller sphere) and σ₂ (for larger sphere). What is the ratio σ₁ / σ₂ ? 🖼️ Question Image:

  ⚖️ Tension in Strings in Orbiting Satellite – Electrostatics in Space | JEE Physics | Doubtify JEE 💡 Question: Two identical small bodies each of mass = m and charge = q are suspended from two strings of length = l from a fixed point. The system is taken inside an orbiting artificial satellite . 👉 Question: What is the tension in the strings inside the satellite? 🖼️ Question Image: