Question 4 3
4. A 12-ohm resistor is connected to a voltage battery. If the voltage provided by the battery is
doubled, the current through the resistor is
A. doubled
B. halved
C. quadrupled
D. unchanged
Justification:

Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.