primary coil
Definition
Noun: * The Inducing Coil in a Transformer: A "primary coil" is the coil of wire in an electrical transformer that is connected to the source of an alternating current. When this alternating current flows through the primary coil, it creates a changing magnetic field, which then induces a voltage and current in a separate, nearby coil called the secondary coil.
Examples of Usage
- Noun:
- In a step-up transformer, the primary coil has fewer turns than the secondary coil.
- The voltage applied to the primary coil determines the voltage induced in the secondary circuit.
- The technician checked the resistance of the primary coil to diagnose the fault.
Advanced Usage
- "Primary winding": This is a direct synonym and is often used interchangeably in technical contexts.
- The primary winding is connected to the input power supply.
Variants and Related Words
- Secondary coil (n): The coil in a transformer in which the current is induced by the changing magnetic field from the primary coil.
- Transformer (n): A static electrical device that uses the principle of mutual induction between a primary and secondary coil to transfer electrical energy from one circuit to another.
- Inductor (n): A passive electrical component, typically a coil of wire, that stores energy in a magnetic field when electrical current flows through it. A primary coil is a specific type of inductor.
Synonyms
- Primary winding: The exact technical synonym.
- Input coil: Describes its function in receiving the input power (common in non-technical explanations).
Related Phrases
- Mutual induction: The physical process where a changing current in the primary coil induces a current in the secondary coil.
Noun
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coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit
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current through the primary coil induces current in the secondary coil
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