Week 1 Online Physics UTRGV

A +5.0−μC charge experiences a 0.51-N force in the positive y direction. If this charge is replaced with a −2.7−μC charge, find the magnitude of the force in this case. Find the direction of the force in this case.

0.28 N In the Negative y direction

How many electrons must be transferred away from a bee to produce a charge of 93.0 pC

5.81*10^8

Prt 1 Find the location of the fifth charge, such that the net electric force acting on each of the original four charges, +Q, can be zero.

At the center of the square

The electric field at the point x=5.00cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C . At the point x=10.0cm and y=0 the electric field points in the positive x direction with a magnitude of 17.0 N/C . Assume this electric field is produced by a single point charge

Charges Location= 26.5 cm Sign of the charge= Negative Magnitude of the charge= 51.2 pC

Given that q = 13 μC and d = 17 cm , find the direction and magnitude of the net electrostatic force exerted on the point charge q1 in the figure.(Figure 1)

F= 66 N Toward the right

An electrically neutral object is given a negative charge. In principle, does the object's mass increase, decrease, or stay the same as a result of being charged?

Increase To give the object a negative charge we must give it more electrons, and this will increase its mass.

Suppose the charged sphere is made from a conductor, rather than an insulator. Do you expect the magnitude of the force between the point charge and the conducting sphere to be greater than, less than, or equal to the force between the point charge and an insulating sphere?

LESS THAN The charge on a conducting sphere will move as far away as possible from the point charge. This results in a reduced force

A charge +q is to be placed at either point A or point B in the accompanying figure.(Figure 1) Assume points A and B lie on a line that is midway between the two positive charges. Is the net force experienced at point A greater than, equal to, or less than the net force experienced at point B?

Less than The net force at point A cancels. Therefore, the nonzero net force at point B is greater in magnitude than the zero net force at point A.

Gaussian surface 1 has twice the area of Gaussian surface 2. Both surfaces enclose the same charge Q. Is the electric flux through surface 1 greater than, less than, or the same as the electric flux through surface 2?

THE SAME AS the two surfaces enclose the same charge, and hence they have the same electric flux

Identify the regions in which you can find E=0 at a finite distance from the charges.

between points B and C to the left of point A

Prt 2 Find the value of q, such that the net electric force acting on each of the original four charges, +Q, is zero.

q = [−Q(2√2+1)] /4