All objects are either or . Charged objects can have a or charge. Uncharged objects will have a charge. Charged objects that have the same charges will each other. Charged objects with opposite charges will each other. Uncharged objects can become . The charge an object has gives it energy. The charged object’s ability to attract (pull) or repel (push) other objects is called force.

Two thin 80.0- cm rods are oriented at right angles to each other. each rod has one end at the origin of the coordinates, and one of them extends along the x- axis while the other extends along the yaxis. the rod along the x- axis carries a charge of - 15.0 μ c distributed uniformly along its length, and the other rod carries 15.0 μ c uniformly over its length. find the magnitude and direction of the net electrical force that these two rods exert on an electron located at the point (40.0 cm, 40.0 cm). (e

Afixed electric space heater wired by a cable with an ampacity of 30 a should draw a maximum current of a. 30 a. b. 24 a. c. 15 a. d. 27 a.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?