Magnetic field of uniform strength at all points inside a solenoid?

AI Thread Summary
The magnetic field inside an ideal solenoid is uniform if the solenoid is infinite in length and the current density is uniform. To understand this, one can apply Ampère's law, which relates the magnetic field to the current flowing through the solenoid. In practical applications, real solenoids may have edge effects that cause variations in the magnetic field strength at the ends. However, for an idealized infinite solenoid, the magnetic field remains constant throughout its interior. Thus, the uniformity of the magnetic field is contingent on these specific conditions.
fiziksfun
Messages
77
Reaction score
0
simple question:

is the magnetic field of uniform strength at all points inside a solenoid?
 
Physics news on Phys.org
best answer:

How would you try to figure this out?

simple answer:

Yes, if the solenoid is infinite in length and the current density is uniform. Use the "best answer" to try to figure out why "simple answer" is true. What physical law would you use?
 
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}...
I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
Back
Top