What Equation Calculates Magnetic Field Strength in a Solenoid?

AI Thread Summary
The discussion focuses on calculating the magnetic field strength in a solenoid with 570 turns and a current of 5 amps. Participants seek guidance on the appropriate equation to compare experimental field strength measurements with theoretical values. The recommended equation for calculating the magnetic field inside a solenoid is easily accessible in electromagnetics textbooks or online resources. A specific link to a relevant website is provided for further reference. Understanding this equation is essential for completing the experiment and analyzing the results effectively.
jimbo71
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Homework Statement


During a lab we used a 570turn solenoid powered by a current of 5amp. For the last part of the experiment we were to take several measurements of the field strength across the cross-section of the solenoid. So we moved the field sensor around inside the solenoid and made our readings. However we are suppose to compare the calculated field values to our experimental values. I have no idea what equation to use for this type of problem. we only recorded x values of the position in reference to the cross-section of the solenoid. I know I have no relavant equations to give but my question is what equation should we use or can someone direct me in the right way of finding such an equation.


Homework Equations





The Attempt at a Solution

 
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any ideas how to calculate b field with such an experiment?
 
jimbo71 said:
any ideas how to calculate b field with such an experiment?

Any electromagnetics field book will have this equation. If you don't have one, the equation is very easy to find on-line.

http://www.utc.edu/Faculty/Tatiana-Allen/magfield.html
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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