Four charges are placed at the four corners of a square of side 15 cm. The charges on the upper left and right corners are +3 μC and -6 μC respectively. The charges on the lower left and right corners are -2.4 μC and -9 μC respectively. The net electric force on -9 μC charge is:
the answer choices are
18 N, 750 below the positive x-axis
18 N, 750 below the negative x- axis
18 N, 750 above the negative x- axis
18 N, 750 above the positive x- axis
2 answers
draw the figure. Look at repulsive charges, and attractive forces.The two repulsive forces are much greater than the one attractive force, leaving the direction of the force below the positive x axis.
18 N, 750 above the + x- axis
0 answers