Question

exam
question 1
what term matches the definition below?
materials that offer little resistance to the flow of electricity. electrons move about freely because they are attached to atoms in a very weak way, so they can conduct a lot of electricity
\ta. ac current
\tb. dc current
\tc. conductive material
\td. insulating material

question 2
what term matches the definition below?
materials in which electrons do not circulate freely, so they are not considered conductors of electric current.
\ta. ac current
\tb. dc current
\tc. conductive material
\td. insulating material

question 3
what term matches the definition below?
consists of the displacement of electrical charges that do not change their direction of travel over time.
\ta. ac current
\tb. dc current
\tc. conductive material
\td. insulating material

question 4
what term matches the definition below?
the current’s direction and plane of movement vary cyclically, the opposite of direct current. this is an efficient current, so it is commonly used in homes and businesses.
\ta. ac current
\tb. dc current
\tc. conductive material
\td. insulating material

Explanation:

Question 1

The definition is about materials with little resistance to electricity and free - moving electrons for good conduction. AC Current (a) and DC Current (b) are types of current, not materials. Insulating material (d) has high resistance. Conductive material (c) fits the description.

The definition is about materials where electrons don't move freely, so they aren't conductors. AC Current (a) and DC Current (b) are currents. Conductive material (c) has free - moving electrons. Insulating material (d) has non - free - moving electrons, so it matches.

The definition is about electrical charges that don't change direction over time. AC Current (a) changes direction. Conductive material (c) and Insulating material (d) are materials, not current types. DC Current (b) has charges moving in a constant direction.

Answer:

c. Conductive material

Question 2