Class 12 Physics NCERT Exemplar Solutions: Electric Charges and Fields

Chapter 1 ka Complete Solution

Yahaan aapko Class 12 Physics NCERT Exemplar ke Chapter 1, 'Electric Charges and Fields', ke har single question aur problem ka poora, detailed solution milta hai. Har step ko aasaan bhasha mein samjhaya gaya hai, taaki concepts clear ho jaayein. Aur haan, ye solutions CBSE board exams ke liye bilkul spot-on hain—chahe aap basic se start karein ya tough numericals mein phans gaye hon, sab kuch yahaan cover ho jaata hai.

Kya Milega Ismein?

• Achha, toh answers kya hain — simple — multiple choice questions ke answers. Bas itna hi, koi lamba-chauda funda nahi. Seedha seedha bata diya hai, warna kahin aur jhankna padta, ghumna phirna padta. Yahan ekdum clear hai.
• Kya hi easy cheez hai — yahan aapko short aur long dono tarah ke answer-type questions ke complete solutions mil jaayenge. Bas padhte jaiye, saamne sab kuch clear hota jaayega.
• Alright, so what do you actually get out of this? Simple. You get a real, step-by-step way to crack numerical problems. No skipping ahead, no magic jumps—just a clear path from the question to the answer, one logical step at a time. And honestly, that's where most people trip up. They try to leap straight to the solution and end up lost. This breaks it down so you actually see how each piece connects, which makes the whole thing way less intimidating. You're not just memorizing formulas anymore; you're learning how to think through the problem, which is a totally different ballgame.

Links for Chapter-wise Download NCERT Solution for Class 12 Physics Exemplar in urdu Language

Here we have provided NCERT Solution for Class 12 Physics Exemplar in urdu Language, Just select the chapters below to get solution of the same:

Electrostatic Potential and Capacitance

Current Electricity

Moving Charges and Magnetism

Magnetism and Matter

Electromagnetic Induction

Alternating Current

Electromagnetic Waves

Ray Optics and Optical Instruments

Wave Optics

Dual Nature of Radiation and Matter

Atoms

Nuclei

Semiconductor Electronics Material, Devices and Simple Circuits

Communication System

Electric Charges and Fields: NCERT Exemplar Solutions

Physics Class 12 ka ye pehla chapter koi halka phulka nahi hai — ye foundation hai. Electric charge se lekar Coulomb’s law, electric field, dipole, aur Gauss’s law tak, sab kuch isi mein chhupa hai. Aur NCERT Exemplar ke sawal? Wo seedha tumhari pakad par sawal uthate hain, ki tune concepts ko samjha ya sirf rat liya. Deep understanding chahiye, kyunki sawal aise hain ki ghisai hui cheezein kaam nahi aati.

MCQs ke Solutions aur Explanations

Chapter ke aage jo MCQs diye gaye thay, unke answers yahaan hain—poori reasoning ke saath, step by step. Har ek solution ko padhna mat bhoolna, kyunki yehi woh cheez hai jo tumhare basics ko pakka karega.

• Straight off the bat, Question 1.1 hits you with electric charge quantization—yeh wala sawal seedha concept par aata hai. Answer (b) hai, aur honestly, koi brainer nahi hai. Reason simple hai: charge kabhi bhi apne aap mein random nahi hota, hamesha electron ke charge 'e' ka integral multiple hota hai. Bas yahi baat is question ko tod deti hai.
• Charges ke beech ka force nikalna hai, aur yahan Coulomb's law hi kaam aata hai. Bas usko sahi se lagao, toh option (c) aa jayega.

Short Answer Type Questions

In questions mein aapko concepts ko theoretically explain karna hota hai, aur kuch chhote numerical bhi solve karne padte hain. So aapko theory ke saath saath calculations ka bhi thoda concept clear hona chahiye. Bas itna hi — kaafi straightforward hota hai.

Example Solution: Electric dipole moment ki definition aur SI unit likhna hai. Simple si baat hai—electric dipole moment do barabar aur opposite charges ke beech ka distance aur charge ki magnitude ka product hota hai. Iska SI unit Coulomb-meter (C m) hai, bas.

Long Answer Type aur Numerical Problems

Ye section asli imtihan hai. Yahan derivation, proof, aur woh tricky numerical problems milte hain jo dimaag ghuma dete hain. Koi shortcut nahi, seedha jawab dena padta hai.

Ek numerical example lete hain—simple sa hai. Do point charges hain: 2 microCoulomb aur 3 microCoulomb, vacuum mein 10 cm ki doori par rakhe hue. Ab unke beech ka force nikalna hai. Toh seedha Coulomb's law lagao: F = (1/(4πε₀)) (q1q2)/r². Bas values daalo, aur kya? Force aata hai 5.4 N. Aur haan, ye repulsive hoga—kyunki dono charges ka sign same hai, toh naturally ek dusre ko dhakelnge.

Gauss's Law ke Applications

Chapter ka jaan hai Gauss’s law hi—uske bina toh aadha syllabus adhoora reh jaata hai. Exemplar questions mein wahi asli test hota hai: wahan aapko alag-alag shapes ke saath khelna padta hai, jaise infinite line charge, ek charged spherical shell, ya phir koi charged conductor. Har baar electric field nikaalne ke liye sahi Gaussian surface chunni padti hai. Aur yahi skill—kab kaunsa surface pick karna hai—woh cheez aapko practice se hi aayegi.

Gauss's Law ke Applications [PARA] In solutions se students ko sahi method se problem solve karne ki practice milegi—but honestly, ye tabhi kaam karta hai jab dimaag se karo. Har step clearly explain kiya gaya hai, har line ko tod kar, taaki concept achhe se samajh mein aaye, na ki sirf ratta maar kar. Ye solutions CBSE board exam pattern ke hisaab se perfect hain. Aur last-minute revision? Bilkul inhi pe bharosa karo, kyunki time kam aur tension zyada hota hai, toh ye seedhe seedhe kaam aayenge.