A +8.75-C point charge is glued down on a horizontal frictionless table. It is tied to a

A +8.75-µC point charge is glued down on a horizontal frictionless table. It is tied to a -6.50-µC point charge by a light, non conducting 2.50-cm wire. A uniform electric field of magnitude 1.85 X 108 N/c is directed parallel to the wire, as shown in Fig. 21.39.
(a) Find the tension in the wire.
(b) What would the tension be if both charges were negative?

Transcribed Image Text:

-2.50 cm- -6.50 µC 8.75 µC