Doubts and answers on every NEET Physics chapter, by students.
Chapter: Moving Charges and Magnetism. I'm trying to see the story in the equations, but a few lines feel like they contradict each other. The force on a charge is \vec F = q \vec v\times\vec B . It's always perpendicula
ok so I made a really neat table in my notes for Faraday's law but the very first line is breaking my brain. NCERT defines flux as \Phi B = \mathbf{B}\cdot\mathbf{A} = BA\cos\theta . In the example I solved, a coil is pl
Photoelectric effect, and my brain says: brighter light = more energy = faster electrons. But NCERT says the stopping potential depends on the frequency, not on intensity, while the photocurrent depends on intensity. Why
This is making me crazy, and I know it's a classic NEET concept so I can't skip it. The binding energy per nucleon curve rises steeply for light nuclei, peaks near iron A around 56 and then falls slowly for heavy nuclei.
I am studying alternating current from NCERT. I understand that household voltage is written as 220 V but the peak is about 311 V. I want to understand why. My teacher said rms value comes from the average of \sin^2 bein
Optics is supposed to be the poetry of physics, but my signs are writing nonsense tonight. Question: an object is placed 20 cm in front of a concave mirror of focal length 15 cm. Find the image position and magnification
Trying to write something poetic about the 'gap' between two bands and ended up with a physics doubt instead occupational hazard . NCERT says in a solid the energy levels of many atoms merge into bands, and what matters
I have been staring at the Ampere–Maxwell law for two days. A capacitor is being charged by a current I in the wire. I draw a loop around the wire. If I choose a flat surface bounded by the loop that the wire passes thro
Doing the Gauss law applications for boards + NEET and I've hit something that feels inconsistent. For an infinite plane sheet of charge with surface density \sigma , I use a pillbox through the sheet and get 2EA = \sigm
Boards + NEET so I need this clean. NCERT gives e = NBA\omega\sin\omega t for a coil of N turns, area A, rotating at angular speed ω in a field B. I did a numerical: coil 50 turns, area 0.02 m², B = 0.4 T, rotating at 30
Okay drama alert 🎭 this chapter has betrayed me. Capacitors, combinations and energy. Setup from a question I did: a 2\ \mu\text{F} capacitor is charged to 100 V and then connected positive plate to positive plate to an
So our school lab test has the NCERT activity: 'identify a diode, an LED, a resistor and a capacitor from a mixed collection'. I'm the notes queen but I've never actually held most of these, so I made a table of what I e
