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a p.d = V is applied between 2 coaxial conducting pipes of radii a and b , with b>a. the pipes are made of non magnetic material. a long straight wire current I is fixed along the axis of the 2 pipes. an electron leaves the inner (cathode) pipes's surface with a negligible velocity. find the values of p.d V at which the electron can not outer pipe (anode)


a p.d = V is applied between 2 coaxial conducting pipes of radii a and b , with b>a.
the pipes  are made of non magnetic material. a long straight wire current I is fixed along the axis of the 2 pipes.
an electron leaves the inner (cathode) pipes's surface with a negligible velocity.
find the values of p.d V at which the electron can not outer pipe (anode)


Grade:upto college level

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