mutual induction

Thân thiện

Two coils of wire are placed side by side to demonstrate mutual induction.

Definition

1. Noun:
   • A phenomenon in electromagnetism: "mutual induction" refers to the process where a change in electric current in one circuit induces an electromotive force (voltage) in a nearby, separate circuit. This occurs due to the magnetic field generated by the changing current in the first circuit linking with the second circuit.

Usage Examples

• Noun:
  • The operation of a transformer is based on the principle of mutual induction.
  • Scientists measured the mutual induction between the two coils to design a more efficient wireless power transfer system.

Advanced Usage

• "Coefficient of mutual induction": This is a specific quantitative measure (often denoted as ) that defines the extent of inductive coupling between two circuits. It depends on factors like the geometry of the circuits and their relative placement.
  • The coefficient of mutual induction for these solenoids was calculated to be 5 millihenries.

Variants and Related Words

• Mutual inductance (n): This is essentially synonymous with "mutual induction," though "mutual inductance" more specifically refers to the property or the quantitative coefficient (M) of the circuits, while "mutual induction" often refers to the process itself.

  • The mutual inductance between the coils determines the efficiency of energy transfer.

• Self-induction (n): A related but distinct phenomenon where a changing current in a single circuit induces an electromotive force in that same circuit.

• Inductive coupling (n): The general transfer of energy from one circuit to another through mutual induction.

Synonyms

• Inductive coupling (general process)
• Electromagnetic induction between circuits (descriptive)

Related Phrases

• To exhibit mutual induction: To demonstrate the property or process.
  • The paired circuits were shown to exhibit significant mutual induction.
• To be governed by mutual induction: To have behavior primarily determined by this principle.
  • The voltage in the secondary winding is governed by mutual induction.

Học thuật

Noun

1. generation of electromotive forces in each other by two adjacent circuits