Self and Mutual Inductance — Predicted 2026

AI-Predicted Question Angles for UPSC 2026

Based on trend analysis, current affairs, and recurring themes in Self and Mutual Inductance.

Combined conceptual and numerical problem on energy storage and induced EMF.

high

NEET often combines concepts. A question might ask for the current in an inductor given its stored energy, and then ask for the induced EMF if that current changes at a certain rate. This tests two key formulas and conceptual understanding in one problem, making it efficient for exam setters. Students need to be comfortable switching between energy and EMF calculations.

Conceptual question on factors affecting mutual inductance and coefficient of coupling.

medium

While self-inductance factors are frequently tested, questions on mutual inductance factors (relative orientation, distance, core material) and the significance of the coefficient of coupling ($k$) are also important. A question might present a scenario with two coils and ask how their mutual inductance changes if their separation or orientation is altered, or if a core is inserted. This tests deeper conceptual understanding beyond just formula application.

Application of Lenz's Law in a scenario involving changing current in an inductor.

high

Lenz's Law is fundamental to understanding the direction of induced EMF. A common question type involves a circuit with an inductor and a switch, asking about the direction of current or EMF immediately after the switch is closed or opened. This tests the student's ability to apply the 'opposition to change' principle correctly, which is a core conceptual aspect of inductance.