(Solved): A long conducting cylindrical rod is inside a long conducting enclosure with a square crosssection ...

A long conducting cylindrical rod is inside a long conducting enclosure with a square crosssection as shown to the right. The rod is maintained at a potential of \( +5000 \) volts with respect to the square which is grounded \( (V=0) \). The contour lines are equipotentials at \( V=+4000,+3000,+2000 \), and \( +1000 \) volta Select a response for each statement below. (Use 'N', North, towards top of page (+y dir), and 'E', East, to the right (+x dir), 'NE' for in between ' \( N \) ' and 'E', etc.) The E-field at 8 is zero. The magnitude of the E-field at 1 is greater than that at 9 The direction of the E-field at 5 is .... The \( x \)-component of the \( E \)-field at 9 is positive. The direction of the force on a small \( (+) \) charge at 7 is .... The direction of the force on a small \( (-) \) charge at 4 is .... The \( y \)-component of the E-field at 1 is zero.