Magnetic Field From a Solenoid - Biot-Savart Law

AI Thread Summary
The discussion focuses on calculating the magnetic field strength along the axis of a solenoid using the Biot-Savart Law. It is suggested that for a solenoid with N turns, the current should be considered as NI, but this is only valid if the coils are perfectly aligned. The correct approach involves integrating the current along the helical path of the solenoid's windings. The importance of proper integration for accurate calculations is emphasized. Understanding these principles is crucial for applying the Biot-Savart Law to solenoids effectively.
fonz
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I'm fairly confident I can express the strength of a magnetic field along the axis of a current carrying loop at some distance x away using the Biot-Savart Law. I'm just trying to extend this idea for a solenoid with N turns. I'm assuming that the current would become NI in this case?

Regards
Dan
 
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Only if the coils lay atop one another.

The proper way is to integrate I along the helical path of the solenoid winding.
 
Antiphon said:
Only if the coils lay atop one another.

The proper way is to integrate I along the helical path of the solenoid winding.

Thanks
 
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