Class 12PhysicsMoving Charges and MagnetismAmpere’s circuital law and its application (Solenoid and Toroid)
Easy$A$ solenoid $2 \,m$ long and $4 \,cm$ in diameter has $4$ layers of windings of $1000$ turns each and carries a current of $5 \,A$. What is the magnetic field at its centre along the axis? $\left[\mu_0=4 \pi \times 10^{-7} \,Wb / Am\right]$
- A$10^{-3} \,T$
- B$2 \pi \times 10^{-3} \,T$
- C$4 \pi \times 10^{-3} \,T$
- D$8 \pi \times 10^{-3} \,T$
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