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A copper rod moves parallel to the horizontal direction. The induced emf developed across its ends due earth’s magnetic field will be maximum at the
- a)latitude 60°
- b)latitude 30°
- c)equator
- d)poles
Correct answer is option 'D'. Can you explain this answer?
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A copper rod moves parallel to the horizontal direction. The induced e...
At the poles, the magnitude of vertical component of the eaths magnetic field is maximum.
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A copper rod moves parallel to the horizontal direction. The induced e...
Explanation:
The induced emf developed across the ends of a copper rod moving parallel to the horizontal direction is due to the interaction between the magnetic field of the Earth and the motion of the rod. This phenomenon is known as electromagnetic induction.
Effect of Earth's Magnetic Field:
The Earth has a magnetic field that is approximately aligned with its geographic axis. At the poles, the magnetic field is vertical, while at the equator, it is horizontal. The magnetic field lines are inclined at an angle to the horizontal at intermediate latitudes.
Effect on Induced Emf:
The induced emf depends on the angle between the magnetic field lines and the direction of motion of the rod. When the rod moves parallel to the Earth's magnetic field lines, the angle between the field lines and the direction of motion is maximum at the poles and minimum at the equator.
Explanation of Options:
a) Latitude 60: At latitude 60, the angle between the Earth's magnetic field lines and the direction of motion of the rod is less than at the poles. Therefore, the induced emf will be less than at the poles.
b) Latitude 30: At latitude 30, the angle between the Earth's magnetic field lines and the direction of motion of the rod is greater than at the equator but less than at the poles. Therefore, the induced emf will be less than at the poles.
c) Equator: At the equator, the angle between the Earth's magnetic field lines and the direction of motion of the rod is minimum. Therefore, the induced emf will be less than at the poles.
d) Poles: At the poles, the angle between the Earth's magnetic field lines and the direction of motion of the rod is maximum. Therefore, the induced emf will be maximum at the poles.
Therefore, the correct answer is option 'D' - poles.
The induced emf developed across the ends of a copper rod moving parallel to the horizontal direction is due to the interaction between the magnetic field of the Earth and the motion of the rod. This phenomenon is known as electromagnetic induction.
Effect of Earth's Magnetic Field:
The Earth has a magnetic field that is approximately aligned with its geographic axis. At the poles, the magnetic field is vertical, while at the equator, it is horizontal. The magnetic field lines are inclined at an angle to the horizontal at intermediate latitudes.
Effect on Induced Emf:
The induced emf depends on the angle between the magnetic field lines and the direction of motion of the rod. When the rod moves parallel to the Earth's magnetic field lines, the angle between the field lines and the direction of motion is maximum at the poles and minimum at the equator.
Explanation of Options:
a) Latitude 60: At latitude 60, the angle between the Earth's magnetic field lines and the direction of motion of the rod is less than at the poles. Therefore, the induced emf will be less than at the poles.
b) Latitude 30: At latitude 30, the angle between the Earth's magnetic field lines and the direction of motion of the rod is greater than at the equator but less than at the poles. Therefore, the induced emf will be less than at the poles.
c) Equator: At the equator, the angle between the Earth's magnetic field lines and the direction of motion of the rod is minimum. Therefore, the induced emf will be less than at the poles.
d) Poles: At the poles, the angle between the Earth's magnetic field lines and the direction of motion of the rod is maximum. Therefore, the induced emf will be maximum at the poles.
Therefore, the correct answer is option 'D' - poles.
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A copper rod moves parallel to the horizontal direction. The induced emf developed across its ends due earth’s magnetic field will be maximum at thea)latitude 60°b)latitude 30°c)equatord)polesCorrect answer is option 'D'. Can you explain this answer? for Class 12 2025 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A copper rod moves parallel to the horizontal direction. The induced emf developed across its ends due earth’s magnetic field will be maximum at thea)latitude 60°b)latitude 30°c)equatord)polesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 12 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A copper rod moves parallel to the horizontal direction. The induced emf developed across its ends due earth’s magnetic field will be maximum at thea)latitude 60°b)latitude 30°c)equatord)polesCorrect answer is option 'D'. Can you explain this answer?.
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