Exam 39: Electrical Fundamentals

Voltage supplied to a potentiometer may be called ________.

Which of these is also known as electrical potential?

Electrical power is calculated by ________.

Most carbon resistors indicate their electrical resistance by ________.

This diagram indicates current flow using which theory of current flow?

Electromotive force is another term for ________.

Which variable resistor is most likely used for a dash light dimmer control?

Insulators lose electrons in their outer shell easier than conductors.

Which unit of electricity does the work in the circuit?

Electricity moving through a conductor produces a magnetic field. This principle is used in which of the following?

Which of these is the term used for electrical power?

What type of material is indicated by this atomic structure?

It is relatively easy to move an electron from the valence ring of a conductor.

A rheostat usually has how many wires?

Which of these elements has the least resistance?

Semiconductors have how many electrons in their valence rings?

Which term describes electrical current resulting from pressure applied to certain crystals?

A positively charged atom is called a(n) ________.

A potentiometer usually has how many wires?

Technician A says that resistance increases as the diameter of a conductor increases. Technician B says that resistance increases as the temperature of a conductor increases. Which technician is correct?