Can We Find an Electric Field Inside a Solenoid?

AI Thread Summary
An electric field inside a solenoid is generally considered to be zero due to the symmetry of the magnetic field created by the current. The discussion references the formula E=Q/4pi_r^2, which is typically used for calculating the electric field from a point charge, highlighting confusion about its application to solenoids. The relationship between electric field (E) and magnetic field (B) in this context is not straightforward, as B/r^2 does not directly correlate to the electric field inside a solenoid. The participants mention using a Gaussian surface around the wire to analyze the charge distribution, which supports the conclusion that the electric field remains zero. Overall, the conversation emphasizes the complexities of understanding electric and magnetic fields in relation to solenoids.
Googl
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Can we find an electric field in a solenoid? Just a little confused
 
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The E field around a current carrying wire is zero.
 
Thanks,

Is there any reason why?
 
My teach is telling me that E=Q/4pi_r^2 is directly proportional to B/r^2

Does that make sense. The first formula is the formula used to find the electric field.
 
Googl said:
E=Q/4pi_r^2

What does this have to do with a solenoid? This looks like the formula for E from a point charge except it's missing an \epsilon_0.
 
Yes it is the formula E from a point charge.

What would the B/r^2 stand for in a solenoid experiment? I mean what would you use that for to find what?

And what about B/r

Thanks.
 
In a current carrying wire the sum of the charge in side would be zero. You could make a Gauss surface around the wire.
 

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