Moving Charges and Magnetism

CBSE Class 12 · Physics · 34 past questions

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1. Q1 2026

   A charged particle +q in an electric field $\vec{E}$ experiences a force in the direction of the electric…

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2. Q2 2026

   A long straight wire of circular cross-section (radius a) carries a steady current I. The current is…

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3. Q3 2026

   A wire of length L is bent round into (i) a square coil having N turns and (ii) a circular coil having N…

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4. Q4 2026

   A galvanometer is used to detect or/and measure small currents in an electrical circuit. It essentially works…

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5. Q5 2026

   A straight long wire lying along y-axis, carries a current of 1 A along –y direction. The magnetic field due…

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6. Q6 2026

   A galvanometer of resistance 27 $\Omega$ is converted into an ammeter of range (0 – 10 mA) using a resistance…

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7. Q7 2026

   Derive an expression for the magnetic field $\vec{B}$, due to a circular coil of N turns, each of radius r…

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