(Solved): Two thin rods of length \( 10.1 \mathrm{~cm} \) are placed side-by-side as shown below, separated ...

Two thin rods of length \( 10.1 \mathrm{~cm} \) are placed side-by-side as shown below, separated by a distance \( x=4.70 \mathrm{~cm} \). The positive rod has total charge \( 8.50 \mathrm{nC} \). The electric field a distance \( d=14.5 \mathrm{~cm} \) away from the positive rod is zero. What is the magnitude of the charge on the negative rod? Magnitude of charge (input a positive answer):