Definition

1. Noun:
   • A measure of the induction between two circuits: The "coefficient of mutual induction" is a physical quantity that quantifies the magnetic linkage between two separate electrical circuits.
   • The ratio of the electromotive force in a circuit to the corresponding change of current in a neighboring circuit: It is defined as the electromotive force (EMF) induced in one circuit divided by the rate of change of current in the other circuit.
   • Usually measured in henries: Its standard unit of measurement is the henry (H), the same unit used for inductance.

Usage Examples

• Noun:
  • The transformer's performance depends heavily on the coefficient of mutual induction between its primary and secondary coils.
  • To calculate the induced voltage, you need to know the coefficient of mutual induction and the rate at which the current in the adjacent circuit is changing.

Advanced Usage

• "Mutual inductance": This is a more common and equivalent term for the coefficient of mutual induction. It is often used interchangeably in physics and electrical engineering contexts.
  • The mutual inductance between the two loops was calculated to be 5 millihenries.

Variants and Related Words

• Mutual inductance (n): The property of two circuits whereby an electromotive force is induced in one by a change of current in the other. This is the concept that the coefficient quantifies.
• Self-inductance (n): The induction of an electromotive force in a circuit when the current in that same circuit changes, in contrast to mutual induction between two separate circuits.
• Inductance (n): The broader property of an electrical conductor which opposes a change in current, encompassing both self and mutual inductance.

Synonyms

• Mutual inductance: The primary synonym.
• Magnetic coupling coefficient (when normalized): A related but distinct term; it is a dimensionless measure of the efficiency of mutual induction, typically ranging from 0 to 1.

Related Phrases

• Coefficient of coupling: A normalized ratio (between 0 and 1) that describes the fraction of magnetic flux from one circuit that links another, related to but distinct from the coefficient of mutual induction.

Noun

1. a measure of the induction between two circuits; the ratio of the electromotive force in a circuit to the corresponding change of current in a neighboring circuit; usually measured in henries