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A long solenoid with 2000 turns is 0.8 m long. What is the magnetising force in the centre of this solenoid, if the exciting current is 2A
  • a)
    5000 AT/m
  • b)
    4500 AT/m
  • c)
    4000 AT/m
  • d)
    2500 AT/m
Correct answer is option 'A'. Can you explain this answer?
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A long solenoid with 2000 turns is 0.8 m long. What is the magnetising...
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A long solenoid with 2000 turns is 0.8 m long. What is the magnetising...
Given:
Number of turns, N = 2000
Length of solenoid, l = 0.8 m
Exciting current, I = 2 A

To find:
Magnetising force, H

Formula:
Magnetising force or magnetic field intensity, H = (N × I) / l

Calculation:
Substituting the given values in the formula, we get
H = (2000 × 2) / 0.8
H = 5000 AT/m

Therefore, the magnetising force in the centre of the solenoid is 5000 AT/m.
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A long solenoid with 2000 turns is 0.8 m long. What is the magnetising force in the centre of this solenoid, if the exciting current is 2Aa)5000 AT/mb)4500 AT/mc)4000 AT/md)2500 AT/mCorrect answer is option 'A'. Can you explain this answer?
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