The Student Room Group

Potential and radius

Help. Question below
(edited 5 years ago)
i) if radius was greater than 1 cm there would be values of r greater than 1 cm for which potential is constant. potential inside the conductor is constant
ii) V is inversely proportional to x
show that Vx is constant
Reply 2
Thank you. Correct. Can you please elaborate part ii ?

Original post by BobbJo
i) if radius was greater than 1 cm there would be values of r greater than 1 cm for which potential is constant. potential inside the conductor is constant
ii) V is inversely proportional to x
show that Vx is constant
Original post by googie3
Thank you. Correct. Can you please elaborate part ii ?

To show that V is inversely proportional to x, you show that the product Vx is constant
Reply 4
umm, yes but how does that show its a point charge? I mean what are we getting by this?
Original post by BobbJo
To show that V is inversely proportional to x, you show that the product Vx is constant
Original post by googie3
umm, yes but how does that show its a point charge? I mean what are we getting by this?


For a point charge, V is inversely proportional to x

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