A small conducting spherical shell with inner radius a and outer radius b is con

Question

A small conducting spherical shell with inner radius a and outer radius b is concentric with a larger conducting spherical shell with inner radius c and outer radius d. The inner shell has a total charge of -1q and the outer shell has a total charge of +4q.



Select True or False for the following statements.
The total charge on the outer surface of the large shell is +3q.
The total charge on the inner surface of the small shell is zero.
The electric field in the region r < a is zero.
The total charge on the inner surface of the large shell is +1q.
The electric field in the region c < r < d is zero.
The total charge on the outer surface of the small shell is zero.
The electric field in the region r > d is zero.
Use Gauss's Law.

ps i have tried - TTTFTTF TTTFTFF TTTTTTF and all are incorrect

Explanation / Answer

You can use the idea given in : http://answers.yahoo.com/question/index?qid=20110124114142AAjP8Et

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