electroscopic

An electroscopic device detects static electricity in the classroom.

Definition

1. Adjective:
   • Relating to an electroscope: "electroscopic" describes anything pertaining to, used in, or characteristic of an electroscope—an instrument that detects the presence and magnitude of electric charge by the divergence of suspended metal leaves or the movement of a needle.

Usage Examples

• Adjective:
  • The electroscopic readings indicated a strong static charge on the surface. (Relating to measurements made with an electroscope.)
  • He conducted an electroscopic examination of the materials to test for residual electricity. (Using the principles or apparatus of an electroscope.)
  • The electroscopic effect was visible as the leaves slowly moved apart. (The observable phenomenon associated with an electroscope.)

Advanced Usage

• "Electroscopic properties": the characteristics of a substance that affect its interaction with an electroscope, such as conductivity or insulation.

  • The electroscopic properties of the rubber sheet prevented any charge from leaking. (The rubber's insulating qualities were evident when tested with an electroscope.)

• "Electroscopic detection": the process of identifying electric charge using an electroscope.

  • Electroscopic detection confirmed the presence of static electricity on the comb. (The electroscope successfully identified the charge.)

Variants and Related Words

• Electroscope (n): the instrument itself.

  • A gold-leaf electroscope is a classic device for demonstrating electric charge. (A specific type of electroscope.)

• Electrostatic (adj): relating to stationary electric charges.

  • Electrostatic forces are often studied using electroscopic methods. (Static electricity phenomena.)

Synonyms

• Charge-sensitive: responsive to or indicating electric charge.
• Static-electric: pertaining to static electricity (though less precise).

Related Idioms