MHT CET 202621 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 21 April
- Shift
- Morning Shift
- Subject
- Physics
- Chapter
- Electromagnetic Induction
MHT CET 2026 · 21 April · Morning Shift · Physics · Electromagnetic Induction
Identify the CORRECT statement
Identify the CORRECT statement
Options
- AThe direction of eddy currents can be determined by the Left-Hand Rule.
- BEddy currents always perform useful work and increase the efficiency of all electrical devices.
- CEddy currents circulate in planes perpendicular to the magnetic field that induces them.
- DEddy currents are present only in non-magnetic materials like aluminum
Correct answer
C. Eddy currents circulate in planes perpendicular to the magnetic field that induces them.
Step-by-step solution
Eddy currents are induced in bulk pieces of conductors when they are subjected to a changing magnetic flux.
According to Faraday's law of induction, the induced electric field and the resulting eddy currents circulate in closed loops within the conductor, in planes perpendicular to the changing magnetic field.
The direction of eddy currents is determined by Lenz's law or Fleming's Right-Hand Rule, not the Left-Hand Rule.
Eddy currents often cause undesirable heating and energy loss in electrical devices like transformers, reducing their efficiency.
Eddy currents can be induced in any conducting material, whether magnetic (like iron) or non-magnetic (like aluminum).
Answer: Eddy currents circulate in planes perpendicular to the magnetic field that induces them.
According to Faraday's law of induction, the induced electric field and the resulting eddy currents circulate in closed loops within the conductor, in planes perpendicular to the changing magnetic field.
The direction of eddy currents is determined by Lenz's law or Fleming's Right-Hand Rule, not the Left-Hand Rule.
Eddy currents often cause undesirable heating and energy loss in electrical devices like transformers, reducing their efficiency.
Eddy currents can be induced in any conducting material, whether magnetic (like iron) or non-magnetic (like aluminum).
Answer: Eddy currents circulate in planes perpendicular to the magnetic field that induces them.