Definition

1. Noun:
   • A physical connection point that allows electric current to flow between conductors: An "electrical contact" is a component or surface where two conductive parts meet to establish an electrical circuit. It is the interface through which electricity is transferred.

Usage

• The term "electrical contact" is used to describe the specific point of connection in switches, relays, connectors, and circuit breakers. Proper contact is essential for a reliable electrical connection.

Examples

• Noun:
  • The relay failed because the electrical contact was corroded and could not close properly.
  • Clean the electrical contact with a specialized solvent to improve the signal quality.
  • A good electrical contact has low resistance and does not overheat.

Advanced Usage

• "to make contact": to establish a physical connection allowing current to flow.
  • When you flip the switch, it causes the internal parts to make contact and complete the circuit.
• "to break contact": to separate the connection and stop the current flow.
  • The safety mechanism automatically breaks contact in case of a power surge.

Variants and Related Words

• Contact (n): In a general electrical context, often used as a shorter form of "electrical contact."
  • The contacts in the old plug were worn out.
• Contact Point (n): A synonym emphasizing the specific location of the connection.
• Switch Contact (n): A specific type of electrical contact found in switches.

Synonyms

• Connection point: A general term for a place where electrical conductors join.
• Terminal: A point at which connections are made to an external circuit, often involving an electrical contact.

Related Phrases

• Wiping contact: A contact designed to clean itself by sliding motion.
  • The wiping contact ensures a clean connection every time the plug is inserted.
• Arcing across contacts: A phenomenon where electricity jumps across a gap between contacts, often causing damage.
  • The loud buzz was caused by arcing across the contacts of the old switch.

Related Idioms

• To lose contact: For an electrical connection to become intermittent or fail completely.
  • The motor sputtered because one of the brushes began to lose contact with the commutator.

Noun

1. contact that allows current to pass from one conductor to another