DigE Ch03 Science of Electricity and Electronics TEST

Front

If two or more of these elements are mixed together, a(n) ________________ is created.

Back

compound

Front

The three basic components of an atom are electrons, protons, and neutrons.

Back

True

Front

According to the law of charges, opposite charges _________________ each other.

Back

attract

Front

The transfer of electrical charge through direct contact is known as _______________________.

Back

conduction

Front

The movement of electrons is known as _______________.

Back

current

Front

___________ states that electrons flow from negative to positive.

Back

Electron flow theory

Front

___________ flows in only one direction and has a definite polarity.

Back

Direct current

Front

__________ is used to express the amount of electrical pressure, or the force behind electron flow.

Back

Voltage

Front

_____________ describes the flow of current in repeatedly alternate direction.

Back

Alternating current

Front

A meter indicates 5 A in a simple circuit connected to a 12 V source. How much resistance is present?

Back

2.4 ohms