In a transformer, adding more turns to the winding primarily increases which parameter related to magnetic linkage?

• A. Inductance
• B. Capacitance
• C. Resistance
• D. Reactance

Answer: (A)

When you add more turns to a transformer winding, the magnetic linkage between that winding and the magnetic circuit increases, and this shows up mainly as a higher inductance. Inductance quantifies how effectively a coil links magnetic flux to itself, and it scales with the square of the number of turns (L ∝ N^2). More turns mean more flux linkage for the same current, increasing the stored magnetic energy and the inductance, which in turn reduces the magnetizing current for a given applied voltage.

Capacitance is set by the geometry and insulation between conductors, so it isn’t primarily driven by turning more windings. Resistance depends on how long the conductor is and its material, not the magnetic coupling. The reactive part related to the winding is inductive reactance, which depends on inductance, so the fundamental quantity describing magnetic linkage here is inductance.