8) A long thin walled square conducting tube has zero electric field inside it far from the ends. Thus, if you raise the tube voltage to Vo the voltage at its geometric center will also be Vo, since AV = -S E · dl from any of the nearest walls. Using this insight, what is the voltage at the same center point if three of %3D the conducting sides are now removed, and only one side at V, remains? (The use of symmetry in physics is very powerful. Don't forget that voltage is a scalar.) 3Vo/4 Vo/3 O Vo/4 O None of the options listed Vo
8) A long thin walled square conducting tube has zero electric field inside it far from the ends. Thus, if you raise the tube voltage to Vo the voltage at its geometric center will also be Vo, since AV = -S E · dl from any of the nearest walls. Using this insight, what is the voltage at the same center point if three of %3D the conducting sides are now removed, and only one side at V, remains? (The use of symmetry in physics is very powerful. Don't forget that voltage is a scalar.) 3Vo/4 Vo/3 O Vo/4 O None of the options listed Vo
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Transcribed Image Text:8) A long thin walled square conducting tube has zero electric field inside it far from the ends. Thus, if
you raise the tube voltage to V, the voltage at its geometric center will also be Vo, since AV = –
from any of the nearest walls. Using this insight, what is the voltage at the same center point if three of
SE di
the conducting sides are now removed, and only one side at V, remains? (The use of symmetry in
physics is very powerful. Don't forget that voltage is a scalar.)
3Vo/4
O Vo/3
O Vo/4
O None of the options listed
O Vo
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