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CBSE Class 12 Physics
Biot-Savart, Ampere's law, force on current, cyclotron, galvanometer.
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Open NCERT chapter ↗5 multiple-choice questions. Pick an option — instant feedback + one-line explanation. Answers don't leave your browser.
1Force on a charged particle moving with velocity v in magnetic field B:
2Biot-Savart law gives:
3Magnetic field at centre of circular coil with N turns, current I, radius r:
4Ampere's law states the line integral of B around a closed loop equals:
5A galvanometer can be converted to ammeter by connecting:
Answer all 5 to submit.
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