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Formula Sheet

Magnetism and Magnetic Effect of Electric Current

NIOS · Class 12 · Physics

All formulas from Magnetism and Magnetic Effect of Electric Current in NIOS Class 12 Physics. Key equations, constants, and identities for board exam preparation.

45 questions33 flashcards5 concepts

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Illustrates Oersted's experiment showing iron filings arranging in concentric circles around a straight current-carrying wire, demonstrating the magnetic field produced by current.
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16 Formulas · 4 Sections

Formulas

Magnets and Earth's Magnetic Field

B_H = B cos δ

B_V = B sin δ

B² = B_H² + B_V²

tan δ = B_V / B_H

Biot-Savart's Law and Applications

|dB| = (μ₀/4π) × (I dℓ sin θ) / r²

B = μ₀I / 2r

B = μ₀nI / 2r

Ampere's Circuital Law and Applications

∮ B · dl = μ₀I

B = μ₀I / 2πr

B = μ₀nI

B = μ₀NI / 2πr

Force on Moving Charge and Current-Carrying Conductor

F = qvB sin θ

F = BIℓ sin θ

F/ℓ = μ₀I₁I₂ / 2πr

R = mv / qB

T = 2πm / Bq

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Frequently Asked Questions

What are the important topics in Magnetism and Magnetic Effect of Electric Current for NIOS Class 12 Physics?
Key topics in Magnetism and Magnetic Effect of Electric Current include Chapter Overview: Magnetism and Magnetic Effect of Electric Current, Chapter Overview: Magnetism and Magnetic Effect of Electric Current, Correct vs Incorrect: Force on Charged Particle in Magnetic Field. These are the concepts NIOS Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Magnetism and Magnetic Effect of Electric Current — NIOS Class 12 Physics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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