Class 12PhysicsMoving Charges and MagnetismAmpere’s circuital law and its application (Solenoid and Toroid)
EasyThe relative permeability in a core of a solenoid is $400$. The windings of a solenoid are insulated from the core and carry a current of $2 \ A$. If the number of turns is $1000$ per meter,then the magnetic intensity inside the core of the solenoid is . . . . . . $\frac{A}{m}$.
- A$2 \times 10^{-3}$
- B$2 \times 10^3$
- C$2.5 \times 10^3$
- D$2.5 \times 10^{-3}$
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