Target Exam

CUET

Subject

Physics

Chapter

Moving Charges and Magnetism

Question:

The magnetic field at the centre of a closely wound circular coil of 100 turns, radius 22 cm, carrying a current of 3.5 A will be

Options:

$1 × 10^{-2} T$

$2 × 10^{-3} T$

$1 × 10^{-3} T$

$2 × 10^{-4} T$

Correct Answer:

$1 × 10^{-3} T$

Explanation:

The correct answer is Option (3) → $1 × 10^{-3} T$