Questions are related.. Consider two concentric conducting spheres. The outer sp

Question

Questions are related..

Consider two concentric conducting spheres. The outer sphere is hollow and initially has a charge Q1-90 deposited on it. The inner sphere is solid and has a charge Q2 4Q on it. 1) How much charge is on the outer surface? Q Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question 2) How much charge is on the inner surface? e Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question 3) Suppose a wire is connected between the inner and outer spheres. Electrostatic equilibrium is established. How much charge is on the outer surface of the outside sphere? Q Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question 4) How much is on the inner surface? e Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question 5) How, if at all, does the electric field at the surface of the inside sphere change when the wire is connected? o It changes from a finite value to zero. o It changes from a finite value to a lesser nonzero finite value. Q o It changes from a finite value to a greater value. Q It does not change at all. Q Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question

Explanation / Answer

1) due to induction -4Q will appear on inner surface of outer sphere and +4Q will also come on outer surface.

so total charge on outer surface = +4Q -9Q = -5Q.

2) -4Q charge is on the inner surface.

3) -5Q charge will be on outer surface.

4) 0 charge on inner surface.

5) It changes from a finite value to zero.

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