NCERT · Class 12 · Physics · Electromagnetic InductionIf the number of turns in a coil is doubled, its self-inductance becomes approximately:
Step-by-Step Solution
Since self-inductance (L) is proportional to the square of the number of turns (N^2) ((L \propto N^2)), doubling the number of turns makes the inductance four times.
Detailed Options Breakdown
Option : Double
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electromagnetic Induction.
Option 1: Four times (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Half
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electromagnetic Induction.
Option 3: Unchanged
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electromagnetic Induction.
💡 Study Guide: This question tests core syllabus concepts from Electromagnetic Induction. For formulas, key summaries, and mock exam reference guides, read the full Electromagnetic Induction Revision Notes.