A long solenoid of 50 cm length having 100 turns carries a current of 2.5 Å. The magnetic field at the centre of the solenoid is:
($\mu_0 = 4\pi \times 10^{-7} \text{ T m A}^{-1}$)

Question

A long solenoid of 50 cm length having 100 turns carries a current of 2.5 Å. The magnetic field at the centre of the solenoid is: 
($\mu_0 = 4\pi \times 10^{-7} \text{ T m A}^{-1}$)

Accepted Answer

6.28 × 10⁻⁴ T

Answer

6.28 × 10⁻⁵ T

Answer

3.14 × 10⁻⁵ T

Answer

3.14 × 10⁻⁴ T

NEET 2020 Physics Calculation of Magnetic Field MCQ Question

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