Q16.Given below are two statements : Statement I: The electric force changes the speed of the charged particle and hence changes its kinetic energy; whereas the magnetic force does not change the kinetic energy of the charged particle. Statement II: The electric force accelerates the positively charged particle perpendicular to the direction of electric field. The magnetic force accelerates the moving charged particle along the direction of magnetic field. In the light of the above statements, choose the most appropriate answer from the options given below : (1) Both Statement I and Statement II are correct. (2) Both Statement I and Statement II are incorrect. (3) Statement I is correct but Statement II is (4) Statement I is incorrect but Statement II is incorrect. correct.
What This Question Tests
This question tests the fundamental understanding of the nature of electric and magnetic forces on charged particles, specifically their effects on the particle's speed and kinetic energy, and the direction of acceleration.
Concepts Tested
Formulas Used
F_e = qE
F_m = q(v x B)
Work = F · dr
Work = ΔKE
📚 NCERT Sections This Tests
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📋 Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Motion of charged particles in electric and magnetic fields
- Year
- 2022
- Shift
- 29 Jun Shift 2
- Q Number
- Q16
- Type
- Assertion Reasoning
- NCERT Ref
- Class 12 Physics Ch 4: Moving Charges and Magnetism
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