positive charge

Thân thiện

A small glass rod gains a positive charge after being rubbed with a silk cloth.

Definition

1. Noun:
   • A deficiency of electrons; having a higher electric potential: A positive charge is a fundamental electrical property of matter. It is the state of having fewer electrons than protons, resulting in a net positive electrical potential. This is a core concept in physics and electromagnetism.

Usage Examples

• Noun:
  • A proton carries a positive charge. (This describes the inherent property of a subatomic particle.)
  • When you rub a glass rod with silk, the rod can acquire a positive charge. (This describes the result of an action where electrons are transferred away from the object.)
  • The positive charge on the electrode attracts negatively charged ions. (This describes the interactive effect of the charge.)

Advanced Usage

• "Net positive charge": This specifies that the overall charge of an object or system is positive after accounting for all positive and negative charges present.
  • Although the atom contains electrons, the nucleus has a net positive charge.

Variants and Related Words

• Positively charged (adj): Describing an object that has a positive charge.

  • The positively charged plate repelled the alpha particle.

• Cation (n): A positively charged ion, which is an atom or molecule that has lost one or more electrons.

  • Sodium forms a cation (Na⁺) when it loses an electron.

Synonyms

• Positive electricity: (Less common, more general term)
• Deficiency of electrons: (Descriptive synonym from the definition)

Related Phrases

• Carry a positive charge: To possess a positive charge.

  • Alpha particles carry a positive charge.

• Acquire a positive charge: To gain a positive charge, typically through a process like friction or induction.

  • The plastic comb acquired a positive charge after being run through dry hair.

Related Concepts

• Electrostatic force: The force between electrically charged objects; like charges repel, unlike charges attract.
• Electric field: The region around a charged object where a force would be exerted on other charged objects. A positive charge creates an electric field that points away from it.

Học thuật

Noun

1. having a deficiency of electrons; having a higher electric potential