6. An electron experiences a force of magnitude F when it is 1 cm from a very long, charged wire with linear charge density .1. Ifthe charge density is doubled, at what distance from the wire will a proton experience a force ofthe same magnitude F? T. What are the strength and direction ofthe electric field at the position indicated by the dot in given figure? Specify the direction as an angle above or below horizontal? . [f 3.0 at D 5.0m 10cm 6.0K 8. Two 10 cm-diameter charged rings face each other. 20 cm apart. Both rings are charged to 20 ts What is the electric 'Field strength at [a] midpoint between the two rings and [b] the center of the lift ring? {(0) 0 N/C and {b} 4.1):103 N/C}