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Grade 12Electrostatics

A metal sphere of radius a has charge Q_A, it is enclosed by a conducting spherical shell of radius b that has charge Q_B. Determine:
a) the potential V_Aof the inner sphere
b) the potential V_B of the outer sphere
c) potential difference between the two sphere (V_A-V_B)
d) under what conditions i) V_A=0 ii)V_B =0 iii) V_A=V_B .

Shreya Sarkar

9 Years agoGrade 12

2 Answers

Vikas TU

9 Years ago

As we have the charge QA and the sweep a

As we ol realize that V = kQ/r

At that point capability of internal circle = kQA/a

Potential contrast of external circle (VB) = kQB/b

Dhananjay verma

9 Years ago

Potential of sphere A is - self potential and potential due to be

Va= KQa/a +KQb/b

Also the potential of sphere B can be find out.

(1) Va=0=Vb , when charge on b and a is zero.

(2) Va=VB , when charge is only on sphere b.

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