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JEE_MAIN_2021
170321_S1
Question
A solenoid of 1000 turns per mettes has a core with relative permeability 500. Insulated windings of the solenoid carry an electric current of 5 A . The magnetic flux density produced by the solenoid is: (permeability of free space $=4 \pi \times 10^{-7} \mathrm{~h} / \mathrm{m}$ )
Select the correct option:
A
$\pi \mathrm{T}$
B
$2 \times 10^{-3} \pi T$
C
$\frac{\pi}{5} T$
D
$10^{-4} \pi \mathrm{~T}$
✓ Correct! Well done.
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