1)Charge is given in microcoulombs. What must you multiply the charge by to use Coulomb's law to calculate the electric force?

A	10-3
B	103
C	106
D	10-6

2)A point charge is placed at the origin of an x, y coordinate grid. Then a curve is drawn to connect all of the points in the xy-plane where the electric field has magnitude 1.0 N/C. What best describes this curve?

A	a circle centered at the origin
B	a straight line of finite length that does not pass through the origin
C	a wide loop that passes through the origin
D	a straight line of infinite length through the origin

3)Two like charges of the same magnitude are1.0mm apart. If the force of repulsion they exert upon each other is5.0N what is the magnitude of each charge? The constant of proportionality for the Coulombic force is 9.0*10^9N*m^2/C^2

	2.4 10-2C
	4.5 104C
	2.4 10-8C
	2.4 10-5C

4)Which condition is required for Coulomb's law to hold true?

A	Point charges must be in a vacuum.
B	Both charges must carry the same sign, either positive or negative.
C	Point charges must be at infinite distances apart.
D	One charge must be much greater in magnitude than the other.

5)

7. Suppose a van de Graaff generator builds a negative static charge, and a grounded conductor is placed near enough to it so that a '10 PC of negative charge arcs to the conductor. Calculate the number of electrons that are transferred. 0 4.38 x 1013 O 10 O 1.12 x 10'13 O 43.8 3. Object A has charge -0.0106 and is positioned 0.80mm from object B, which has charge 020C. What is the magnitude of the electric field at the center of object A? Let the constant k = 9.0 x109 N . m2/C2. 7.0 x 1016 N/C O 1.4 x 1015 N/C O 2.8 x 1015 N/C O 2.8 x 1016 N/CThe diagram shows two unequal charges, +q and Q, that have opposite sign. Charge Q has greater magnitude than charge q. Point X is midwayr between the charges. On the line dened by the two charges exists a point where the resultant electric eld of zero. In which section of the line is this point