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A long solenoid is formed by 70 turns/cm. The current to produce a magnetic field of 20 mT inside the solenoid will be
  • a)
    2.27 A
  • b)
    1.5 A
  • c)
    1.8 A
  • d)
    3 A
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A long solenoid is formed by 70 turns/cm. The current to produce a mag...
B = μ0ni
⇒ 
= 2.27A
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A long solenoid is formed by 70 turns/cm. The current to produce a magnetic field of 20 mT inside the solenoid will bea)2.27 Ab)1.5 Ac)1.8 Ad)3 ACorrect answer is option 'A'. 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 long solenoid is formed by 70 turns/cm. The current to produce a magnetic field of 20 mT inside the solenoid will bea)2.27 Ab)1.5 Ac)1.8 Ad)3 ACorrect answer is option 'A'. 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 long solenoid is formed by 70 turns/cm. The current to produce a magnetic field of 20 mT inside the solenoid will bea)2.27 Ab)1.5 Ac)1.8 Ad)3 ACorrect answer is option 'A'. Can you explain this answer?.
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