Write Faraday's law of electromagnetic induction.
फैराडे का वैद्युतचुम्बकीय प्रेरण का नियम लिखिए।
🔥 Most repeated · asked 4×वैद्युतचुंबकीय प्रेरण — बार-बार पूछे जाने वाले प्रश्न
Last updated: 5 July 2026
Every RBSE Class 12 Physics board paper from 2013 to 2026 for Electromagnetic Induction, sorted and tagged so you know exactly which Faraday's-law, Lenz's-law and motional-emf questions to revise first.
Real previous-year questions with the exact RBSE board years they appeared in. 5 more high-yield questions — including mutual-inductance and rotating-rod derivations — are in the free PDF.
Write Faraday's law of electromagnetic induction.
फैराडे का वैद्युतचुम्बकीय प्रेरण का नियम लिखिए।
🔥 Most repeated · asked 4×A conducting rod of length L is rotating with constant angular velocity ω, perpendicular to a uniform magnetic field B. Obtain an expression for the induced EMF between its ends. Draw the necessary diagram.
'L' लम्बाई की एक चालक छड़ समरूप चुम्बकीय क्षेत्र 'B' में क्षेत्र के लम्बवत् एक नियत कोणीय वेग 'ω' से घूर्णन कर रही है। छड़ के सिरों के मध्य प्रेरित विद्युत वाहक बल का व्यंजक प्राप्त कीजिए। आवश्यक चित्र बनाइए।
🔁 Repeated · asked 3×Write Lenz's law. Show that Lenz's law obeys the law of conservation of energy.
लैंज का नियम लिखिए। लैंज का नियम ऊर्जा संरक्षण नियम का पालन करता है। समझाइये।
🔁 Repeated · asked 2×Two concentric circular coils of radii r₁ and r₂ are placed co-axially with centres coinciding (where r₁ ≪ r₂). Obtain the mutual inductance of this arrangement.
r तथा R त्रिज्याओं की दो संकेन्द्री वृत्ताकार कुंडलियाँ समाक्ष रूप में स्थित हैं। यदि R >> r हो तो कुंडलियों के बीच अन्योन्य प्रेरकत्व ज्ञात कीजिए।
⚙️ Core derivationA conducting rod of length l is moving with constant linear speed v in a mutually perpendicular uniform magnetic field B. Obtain the expression for the motional electromotive force.
'l' लम्बाई की एक चालक छड समरूप चुम्बकीय क्षेत्र 'B' में नियत रेखीय चाल 'v' से गतिमान है। यह व्यवस्था परस्पर लम्बवत् है। गतिक विद्युत वाहक बल का व्यंजक प्राप्त कीजिए।
⭐ High-weightageThe other 5 are in the free PDF — and all 22 previous-year questions for this chapter are in the full book.
Get 10 hand-picked previous-year questions from Chapter 6. Every question includes the exam year, marks, and repeat count. Instant download—no signup required.
A quick map of the chapter before you download — so you know what the questions are testing.
If you have gone through the last decade of RBSE Class 12 Physics papers, you will notice Chapter 6 (Electromagnetic Induction) is tested every year without fail. It belongs to Unit IV — Electromagnetic Induction and Alternating Currents and is drawn from a pool of 22 previous-year questions spanning 2013–2026, spread across MCQs, very short, short and long-answer sections. The topics rotate, but the question patterns stay remarkably steady.
Expect a quick 1-mark opener asking you to state Faraday's or Lenz's law, or define magnetic flux. The 1.5 to 2-mark questions lean on motional emf numericals and mutual inductance of concentric coils. The heavy marks sit in the 4-mark long answer, which almost always asks you to derive the induced emf in a rod rotating in a uniform magnetic field.
So the smart way to revise this chapter is not to read it end to end, but to practise the questions RBSE actually repeats. The five questions above — and the ten in the free sample PDF — are taken straight from real board papers and tagged with the exact years they appeared, so you can see for yourself what the full RBSE Physics chapterwise PYQ book offers before you decide to buy it.
The RBSE syllabus sub-topics this chapter's PYQs are drawn from — useful for scoping your revision even if you're not buying the full book.
"Faraday's law wala 1-mark question toh fix hi rehta hai — is list mein sabse pehle mila."
"Rotating rod wala derivation free PDF mein tha, exam mein hu-ba-hu wahi aaya."
"Year-wise tags dekh kar revision plan banana easy ho gaya. Poora 14-chapter book bhi le liya sirf ₹59 mein, paisa vasool."
The ₹59 full book unlocks all 22 tagged previous-year questions for Electromagnetic Induction — plus all 13 other chapters.
Every MCQ, VSA, SA and long-answer question for this chapter from RBSE papers 2013–2026 — 22 in total.
Each question labelled with year, marks and question type.
Highest-repeated questions listed first so revision time is spent well.
Full bilingual coverage — study in whichever medium you write your exam.
Quick-reference sheet of every electromagnetic induction formula — Faraday's and Lenz's laws, motional emf, self and mutual inductance formulas.
Updated to the latest RBSE board pattern, with access valid for the current 2026–27 exam session.
One booklet, every chapter, tagged and sorted by repeat priority — in English and Hindi.
See full book — ₹59 →