Two thin rods of length $90\mathrm{.}3$ cm are placed side$-$by$-$side as shown below, separated by a distance x $=1\mathrm{.}00$ cm$.$ The positive rod has total charge $7\mathrm{.}10$ nC$.$ The electric field a distance d $=14\mathrm{.}7$ cm away from the positive rod is zero. What is the magnitude of the charge on the negative rod? 

 

Transcribed Image Text:

+ + + + + X I + + I + + + + + X I + + I