Exam 2: Electrical Fundamentals

In order for an object to be in a charged state, which two particles must be in a state of imbalance?

Electrons orbit the nucleus of an atom in arranged rings called ____ .

Which term means coulombs per second?

An electrostatic generator develops a voltage using ____.

The amount of current flowing through a circuit is ____ proportional to the electromotive force (voltage) and ____ proportional to the resistance of the circuit.

Alternating current flows first in one direction and then in the opposite direction.

What is the unit of measurement for resistance?

One of the rules for electric charges is that the strength of the attraction or repulsion between charged objects is directly proportional to the distance between them.

Applying pressure to certain crystals to produce voltage is known as the ____ effect.

The total current flowing in a circuit is equal to the total ____ applied to the circuit divided by the total ____ of the circuit.

Rubber and glass are good insulators.

In an electrical circuit, which term indicates the voltage generated by the source, such as a battery or generator?

Opposition to the flow of electrons is called _____.

The nucleus of an atom is made up of protons, which have a positive charge and neutrons, which have a negative charge.

Atoms that have from one to four electrons in their last, or outer, shell are generally good conductors of electricity.