🔍 Key Concepts

• Inductance and magnetic coupling in a coil • How Q (quality factor) relates to resistance and reactance in an inductor • What happens when a shorted turn behaves like a low-resistance secondary winding

💭 Think About

• Think about how a shorted turn affects the magnetic field and energy storage in the inductor: does it increase or decrease effective inductance? • Consider how additional losses from a shorted turn would affect the inductor’s Q factor: does Q go up or down when losses increase? • Visualize the shorted turn as a short-circuited secondary of a transformer: what happens to current and temperature in that shorted turn and nearby windings?

✅ Before You Answer

• Verify how Q = X_L / R (inductive reactance divided by effective resistance) changes if effective resistance due to losses increases • Check whether a shorted turn introduces circulating currents that cause heating in the coil • Confirm if more than one of the listed effects (induction, Q, overheating) can occur at the same time, and whether that justifies choosing a combined option