Question

which electric charge has electric field lines directed radially outward? a. positive charge. b. negative charge. c. neutral charge. d. both positive and negative charges. question 8 2 pts if electric potential energy has unit in joules, then what about the units for electric potential or voltage. a. volts b. watts b. amperes d. joules also question 9 2 pts an atom gaining 1 or more electrons is called a. neutral atom. b. positive ion. c. negative ion. d. not enough information given.

Explanation:

1. For the first question, electric field lines point radially outward from a positive charge due to the nature of electric - field direction which is defined as the direction a positive test charge would move.
2. For the second question, electric potential (voltage) is defined as the electric potential energy per unit charge. Since electric potential energy is in joules and charge is in coulombs, the unit of electric potential is joules per coulomb, which is defined as a volt.
3. For the third question, an atom is neutral when it has an equal number of protons and electrons. When an atom gains one or more electrons, it has an excess of negative charge and is called a negative ion.

Answer:

1. A. Positive charge
2. A. Volts
3. C. Negative ion