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A coil has an area of 0.05 m2 and it has 800 turns. It is placed perpendicularly in a magnetic field of strength 4 × 10–5 wb/m2. It is rotated through 90° in 0.1s. The average emf induced in the coil is :
  • a)
    0.056 V
  • b)
    0.046 V 
  • c)
    0.016 V
  • d)
    0.026 V
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
A coil has an area of0.05m2and it has800 turns. It is placed perpendic...
According to Faraday’s law
Induced emf, 
Where flux through the coil

θ is the angle between magnetic field and unit normal to the surface.
when coil is rotated from 0° to 90° then total change in magnetic flux is given by
0.016 V
The correct answer is: 0.016 V
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Community Answer
A coil has an area of0.05m2and it has800 turns. It is placed perpendic...
According to Faraday’s law
Induced emf, 
Where flux through the coil

θ is the angle between magnetic field and unit normal to the surface.
when coil is rotated from 0° to 90° then total change in magnetic flux is given by
0.016 V
The correct answer is: 0.016 V
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A coil has an area of0.05m2and it has800 turns. It is placed perpendicularly in a magnetic field of strength4 × 10–5wb/m2. It is rotated through 90° in0.1s. The average emf induced in the coil is :a)0.056Vb)0.046Vc)0.016Vd)0.026VCorrect answer is option 'C'. Can you explain this answer?
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A coil has an area of0.05m2and it has800 turns. It is placed perpendicularly in a magnetic field of strength4 × 10–5wb/m2. It is rotated through 90° in0.1s. The average emf induced in the coil is :a)0.056Vb)0.046Vc)0.016Vd)0.026VCorrect answer is option 'C'. Can you explain this answer? for Physics 2025 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about A coil has an area of0.05m2and it has800 turns. It is placed perpendicularly in a magnetic field of strength4 × 10–5wb/m2. It is rotated through 90° in0.1s. The average emf induced in the coil is :a)0.056Vb)0.046Vc)0.016Vd)0.026VCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Physics 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A coil has an area of0.05m2and it has800 turns. It is placed perpendicularly in a magnetic field of strength4 × 10–5wb/m2. It is rotated through 90° in0.1s. The average emf induced in the coil is :a)0.056Vb)0.046Vc)0.016Vd)0.026VCorrect answer is option 'C'. Can you explain this answer?.
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