Your College Textbooks Are _____ Source Material

question 38

Multiple Choice

Your college textbooks are _____ source material.

• A) primary
• B) part primary and part secondary
• C) part secondary and part tertiary
• D) tertiary

---

Definitions:

Eddy Current

Circular induced current contrary to the main currents. Eddy currents are a source of heat and power loss in magnetically operated devices.

Hysteresis

The phenomenon in which the state of a material lags behind changes in the effect causing it, such as the lagging of magnetic flux density behind the magnetizing force.

Spike Suppression

Techniques or devices used to protect electronic circuits from sudden transient voltages, which could cause damage or malfunction.

Metal Oxide Varistor

A voltage-dependent resistor with a nonlinear variance, used to protect electrical circuits from voltage spikes.