Question

A metal sphere A has charge 2Q. Two other spheres, B and C, are identical to A except they have zero net charge. A touches B, then the two spheres are separated. B touches C, then those spheres are separated. Finally, C touches A and those two spheres are separated. If sphere C is grounded when it is touching B, but C is not grounded at any other time. What is the final charge on each sphere ?

Name: a metal sphere a has charge 2q two other spheres b and c are identical to a except they have zero net charge a touches b then the two spheres are separated b touches c then those spheres are 82375
Uploaded: 2022-05-25T05:41:05-08:00
Duration: 2 min 31 s
Channel: Adi S
Description: a metal sphere a has charge 2q two other spheres b and c are identical to a except they have zero net charge a touches b then the two spheres are separated b touches c then those spheres are 82375

          A metal sphere A has charge 2Q. Two other spheres, B and C, are
identical to A except they have zero net charge. A touches B, then
the two spheres are separated. B touches C, then those spheres are
separated. Finally, C touches A and those two spheres are
separated. If sphere C is grounded when it is touching B, but C is
not grounded at any other time. What is the final charge on each
sphere ?

Added by Michael R.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Adi S

05/25/2022

Step 1

When A touches B (which has zero charge), the charge is shared equally between A and B. So, after they separate, A will have a charge of Q and B will have a charge of Q. Show more…

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A metal sphere A has charge 2Q. Two other spheres, B and C, are identical to A except they have zero net charge. A touches B, then the two spheres are separated. B touches C, then those spheres are separated. Finally, C touches A and those two spheres are separated. If sphere C is grounded when it is touching B, but C is not grounded at any other time. What is the final charge on each sphere ?