Electrostatics — Previous-Year Questions
10 curated PYQs across 2 topics, drawn from JEE Mains, JEE Advanced, NEET UG, and CUET papers. Every question has a worked-out explanation.
Electric Field Lines
Place charges in space and watch electric field lines form in real time. Understand superposition and field behavior visually.
Q1. Two charges +q and −q are at distance d apart. Electric field at the midpoint is:
JEE 2020Q2. Electric field on the axial line of a dipole at large distance varies as:
JEE 2019Q3. A charge Q is at the center of a cube. Flux through one face is:
JEE 2021Q4. The torque on a dipole of moment p in a uniform field E at angle 30° is:
JEE 2018Q5. Two identical charges Q are separated by distance d. The point where E = 0 is:
JEE 2017Capacitors & Dielectrics
Build parallel plate capacitors, insert dielectrics, and observe how capacitance, charge, and energy storage change.
Q1. A parallel plate capacitor with air has capacitance C. If half the space is filled with dielectric (κ=6), new capacitance is:
JEE 2020Q2. Three capacitors 2μF, 3μF, 6μF in series. Equivalent capacitance:
JEE 2019Q3. A capacitor of 4μF charged to 100V. Energy stored:
JEE 2018Q4. Two capacitors 6μF charged to 20V and 3μF charged to 10V connected in parallel. Common potential:
JEE 2021Q5. A dielectric slab (κ=5) is inserted in a charged isolated capacitor. The electric field:
JEE 2017Electrostatics previous-year questions on sciphylab (also known as SciPhy, SciPhy Lab, SciPhy Labs). Free physics practice for Class 12, JEE Mains, JEE Advanced, NEET UG, AP Physics, SAT, and CUET-UG candidates.