Moving Charges and Magnetism · Class 12 Physics · Chapter 4
⚛️ Moving Charges and Magnetism
CBSE Class 12 Science · Physics · Chapter 1
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📖Notes Deck
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Download PDF →📝Quick Drill
15 pattern-tagged MCQs with per-Q time budget. Drill under a 20-min timer.
Download PDF →📄Exam Paper
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Download PDF →Top question patterns · CBSE annual / SQP aggregate
| 88% | Biot-Savart + B on axis/centre of loop — dB integral, symmetry kills perpendicular components; B=mu_0 I/2R at centre | 3 MARKS |
| 80% | Cyclotron radius + frequency — qvB=mv^2/r => r=mv/qB; f=qB/2*pi*m independent of v | 3 MARKS |
| 78% | Force between parallel wires + define ampere — F/L = mu_0 I1 I2/2*pi*d; 2e-7 N/m at 1 m | 3 MARKS |
| 75% | Torque on loop + galvanometer — tau=NIAB sin(theta); radial field => sin=1; I proportional to phi | 3 MARKS |
| 70% | Galvanometer to ammeter/voltmeter — Shunt S=I_g G/(I-I_g); series R=V/I_g - G | 3 MARKS |
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