The value of the electric field at each point in space is defined to be the ____

Question

The value of the electric field at each point in space is defined to be the _______ charge is that point. a. energy of a unit positive b. energy of a unit negative c. force on a unit positive d. force on a unit negative Neutral objects are attracted to both negatively and positively charged objects because. a. they actually have a slight imbalance of charge. b. charge is conserved. c. they give off some of their charges to ground. d. there is a redistribution of their internal charges. Suppose you find an electroscope with separated foils. When you bring a negatively charged rod slowly near it, the foils move further apart. You can then conclude that the electroscope was initially a. positively charged b. negatively charged c. neutral. d. You cannot conclude anything about the initial charge. When two identical batteries are connected in parallel, the total voltage of the combination is a. the sum of the two voltages. b. equal to the voltage of one battery. c. the reciprocal of the sum of the reciprocals of the two voltages The electric current is a measure of the a. force exerted on the charges by the battery. b. amount of charge flowing through a wire each second. c. energy supplied by the battery each second. d. forces resisting the flow of charge through the circuit. The voltage in a circuit is a measure of the a. force exerted on the charges by the battery. b. amount of charge flowing through a wire each second. c. energy supplied by the battery each second. d. resistance to the flow of charge through the circuit. Increasing which of the following decreases the resistance of a wire? a. length b. temperature c. diameter d. current

Explanation / Answer

10. when two batteries of equal voltages are connected in parallel, the net voltage is equal to the voltage due to a single battery

11. electric is defined as amount of charge flowing through a wire in each second since I = q / t

12. the voltage in a circuit is a measure of the...energy supplied by the battery in each second

13. since R = (rho) l / A = (rho) l / pi r^2 .....R inversely proportional to the area which in turn depends on diameter or radius

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