A solenoid has 100 turns and is of lengt

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Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

A solenoid has 100 turns and is of length 20 cm. It carries a current of 5A. The magnetic field in the middle of the solenoid is

Options:

3.14 mT

310 mT

62 mT

314 mT

Correct Answer:

3.14 mT

Explanation:

The correct answer is Option (1) → 3.14 mT $n^{2}$