A smallconducting spherical shell with inner radius a andouter radius b is conce

Question

A smallconducting spherical shell with inner radius a andouter radius b is concentric with a largerconducting spherical shell with inner radius c andouter radius d. The inner shell has a total chargeof -1q and the outer shell has a total charge of+4q. Select True or False for the following statements:
The electric field in the region c <r < d is zero.
The total charge on the inner surface of the small shell is-5q.
The radial component of the electric field in the regionr > d is given by+3q/(4pe0r2).
The radial component of the electric field in the regionr < a is given by-1q/(4pe0r2).
The total charge on the outer surface of the large shell is+3q.
The total charge on the inner surface of the large shell is-5q.
A smallconducting spherical shell with inner radius a andouter radius b is concentric with a largerconducting spherical shell with inner radius c andouter radius d. The inner shell has a total chargeof -1q and the outer shell has a total charge of+4q. Select True or False for the following statements:
The electric field in the region c <r < d is zero.
The total charge on the inner surface of the small shell is-5q.
The radial component of the electric field in the regionr > d is given by+3q/(4pe0r2).
The radial component of the electric field in the regionr < a is given by-1q/(4pe0r2).
The total charge on the outer surface of the large shell is+3q.
The total charge on the inner surface of the large shell is-5q.
Select True or False for the following statements:
The electric field in the region c <r < d is zero.
The total charge on the inner surface of the small shell is-5q.
The radial component of the electric field in the regionr > d is given by+3q/(4pe0r2).
The radial component of the electric field in the regionr < a is given by-1q/(4pe0r2).
The total charge on the outer surface of the large shell is+3q.
The total charge on the inner surface of the large shell is-5q.

Explanation / Answer

* True.There is no electric field inside of theshell * True, allthe charges will move to the outside to get as far apart aspossible * True, shell acts like a pointcharge. *False, the electric field is zero inside theshell. *True, the other +3q will be on the inner surface,so a Gaussian surface in the outer shell has no enclosedcharge. *False, +3qwill be on theinside.

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