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  • A long solenoid has N turns per meter & current I A is following through it. The magnetic field at the ends of the solenoid is. [Infinite solenoid]Option: 1<

A long solenoid has N turns per meter & current I A is following through it. The magnetic field at the ends of the solenoid is. [Infinite solenoid]

Option: 1

\frac{\mu onI}{2}


Option: 2

\mu onI


Option: 3

Zero


Option: 4

2\mu onI


Answers (1)

best_answer

As we learned

Magnetic field due to Infinite length solenoid -

\alpha =0,\beta =\frac{\pi }{2}

B_{end}=\frac{1}{2}(\mu_{0}ni)

B_{end}=\frac{1}{2}(B_{in})

- wherein

near one end 

 

 B at ends of solenoid is \frac{\mu o}{2}ni

 

Posted by

shivangi.shekhar

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