The Principal Difference Between a Solenoid and a Relay Is

question 2

Multiple Choice

The principal difference between a solenoid and a relay is that:

• A)relays relay electricity, solenoids do not.
• B)solenoids do electrical work, relays do mechanical work.
• C)solenoids do mechanical work, relays do electrical work.
• D)relays use magnets, solenoids do not.

---

Definitions:

Capsules

In microbiology, a gelatinous covering that encloses some bacteria, enhancing their ability to cause disease.

Sex Pili

Hair-like structures on the surface of bacterial cells that are involved in the transfer of DNA during conjugation.

Chemical Signals

Molecules released by cells to communicate with each other, affecting the behavior or physiology of other cells.

Zygotes

The initial cell formed when two gamete cells (e.g., sperm and ovum) are fused, representing the earliest developmental stage of many organisms.