A conducting sphere has a radius of 20 cm and is attached to twocurrent carrying wires. One wire carries 1.000004 A into thesphere. The second wire carries 1 A out of the sphere.
--------------------------------------------------------------------------------
a) After 21 seconds, how many electrons does the spherecontain?
Ne=
--------------------------------------------------------------------------------
b) Assuming it starts at 0 volts, how long will it take the surfaceof the sphere to reach 2000 V?
?t= sec
HELP: If you have a sphere of charge Q, how would you find theelectrical potential, V, at any point greater than or equal to theradius of the sphere?
--------------------------------------------------------------------------------
c) At the moment the surface of the sphere reaches 2000 volts, whatis the electrical potential of an interior point 10 cm from itscenter?
VR/2= V
A conducting sphere has a radius of 20 cm and is attached to twocurrent carrying wires. One wire carries 1.000004 A into thesphere. The second wire carries 1 A out of the sphere.
--------------------------------------------------------------------------------
a) After 21 seconds, how many electrons does the spherecontain?
Ne=
--------------------------------------------------------------------------------
b) Assuming it starts at 0 volts, how long will it take the surfaceof the sphere to reach 2000 V?
?t= sec
HELP: If you have a sphere of charge Q, how would you find theelectrical potential, V, at any point greater than or equal to theradius of the sphere?
--------------------------------------------------------------------------------
c) At the moment the surface of the sphere reaches 2000 volts, whatis the electrical potential of an interior point 10 cm from itscenter?
VR/2= V
