To learn to apply the concept of current density and microscopic Ohm's law. A "gauge 8" jumper cable has a diameter ddd of 0.326 centimeters. The cable carries a current III of 30.0 amperes. The electric field EEE in the cable is 0.062 newtons per coulomb. Part APart complete Part B What electric field E′E′E' would have been required to create a current of 30.0 amperes in a copper "gauge 10" wire with diameter ddd equal to 0.259 centimeters?

An isolated conducting spherical shell carries a positive charge. part a which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? which statement (or statements) about the electric field and the electric potential inside and outside the spherical shell is correct? electric potential inside the shell is constant and outside the shell is changing as 1/r2 both the electric potential and the electric field does change with r inside and outside the spherical shell electric potential inside and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is equal to zero electric field inside and outside the shell is constant (does not change with the position r), but is not equal to zero electric field inside and outside the shell is changing as 1/r (where r is the distance from the center of the sphere) electric field inside is equal to zero and outside the shell is constant, but not zero electric potential inside the shell is constant and outside the shell is changing as 1/r electric field inside and outside the shell is changing as 1/r2 electric field inside is equal to zero and outside the shell is changing as 1/r2 electric field inside and outside the shell is zero electric field inside is constant and outside the shell is changing as 1/r

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