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Two metal ball of the same radius a  are located in homogeneous poorly conducting medium with resistivity ρ.The resistance of the medium between the ball provided that the separation between them is much greater than the radius of the ball.
  • a)
  • b)
  • c)
  • d)
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Two metal ball of the same radiusa are located in homogeneous poorly c...
Let us impart charge  q  and  q  to the balls respectively. Potential difference between two balls
V = V+ – V
Electric field at the surface of first sphere

electric field due to second sphere at the surface of first sphere is negligible
current density J = σE

The electric current

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Two metal ball of the same radiusa are located in homogeneous poorly c...
Let us impart charge  q  and  q  to the balls respectively. Potential difference between two balls
V = V+ – V
Electric field at the surface of first sphere

electric field due to second sphere at the surface of first sphere is negligible
current density J = σE

The electric current

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Community Answer
Two metal ball of the same radiusa are located in homogeneous poorly c...
Let us impart charge  q  and  q  to the balls respectively. Potential difference between two balls
V = V+ – V
Electric field at the surface of first sphere

electric field due to second sphere at the surface of first sphere is negligible
current density J = σE

The electric current

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Two metal ball of the same radiusa are located in homogeneous poorly conducting medium with resistivityρ.The resistance of the medium between the ball provided that the separation between them is much greater than the radius of the ball.a)b)c)d)Correct answer is option 'B'. Can you explain this answer?
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