Home » MCQs » 12th Class » MCQs Physics Chapter 14 – Class 12
Al-Huda Science Academy has designed Class 12 MCQs Physics Chapter 14 Electromagnetism for board, MdCat and ECAT preparation. These MCQs help students to prepare for their entry test papers.
Chapter 14 Electromagnetism includes topics:
- Electromagnetism
- Force on a current carrying coil in magnetic field
- Magnetic Flux and Magnetic Density
- Ampere’s law
- Determination of flux density
- Force on a moving charge in a magnetic field
- Lorentz Force
- Determination of e/m
- CRO – Cathode Ray Oscilloscope
- Torque on a current carrying coil
MCQs Physics Chapter 14 Electromagnetism
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#1. Mass of electron is:
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#2. e/m of neutron is:
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#3. Force is minimum when angle between v and B is ______.
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#4. Direction of force on a current carrying conductor in uniform magnetic field is along the palm of _____.
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#5. Force on moving positive charge in magnetic field is:
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#6. Magnetic Flux is a _____ quantity.
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#7. Magnetic flux density through current carrying wire B =
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#8. In electromagnetism, electric and magnetic field are _____ to each other.
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#9. Force is maximum when angle between v and B is ______.
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#10. Torque on current carrying coil is:
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#11. In CRO, thermionic emission occurs at:
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#12. Lorentz force is the sum of magnetic force and _____.
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#13. F =
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#14. The value of μo is _____.
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#15. Magnetic force is perpendicular to a plane containing _____.
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#16. In CRO, grid controls _____ of screen.
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#17. Flux is minimum when surface is _____ to B.
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#18. 1T =
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#19. The _____ is provided to Y-plates from external source in CRO.
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#20. Electromagnetism deals with:
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#21. e/m =
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#22. Fe =
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#23. Magnetic force is _____ force.
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#24. Flux is maximum when surface is _____ to B.
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#25. Fb =
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#26. Force on moving negative charge in magnetic field is:
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#27. Magnetic flux density through solenoid B =
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#28. Horizontally aligned plates in CRO are called _____.
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#29. Magnetic force provide _____ work.
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#30. 1T =
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#31. Lorentz force F =
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#32. B.ΔL =
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#33. In CRO, _____ is used to heat the cathode.
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#34. magnetic behavior of current was discoved by:
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#35. μo is called _____.
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#36. Mass of proton is:
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#37. The force on a moving charge is due to:
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#38. e/m of proton is:
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#39. _____ are used to accelerate electrons.
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#40. e/m of electron is:
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