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IB Physics HL — Electromagnetic Induction Question Paper & Practice Test

25 syllabus-aligned questions on Faraday's law, Lenz's law, and induced EMF for Singapore's IB Diploma students. Preview 5 for free — sign up to generate, customize, and download the complete test as a printable PDF.

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IB Physics HL — Electromagnetic Induction
25-Question Practice Test · Mixed Difficulty · IB-Aligned
MCQ
Q1.
According to Faraday's Law, the EMF induced in a coil is proportional to:
A) The magnetic field strength only
B) The rate of change of magnetic flux linkage
C) The resistance of the coil
D) The number of turns only
Correct Answer: B
Short Answer
Q2.
State Lenz's Law and explain what it tells us about the direction of an induced current.
Structured Question
Q3.
A coil of 200 turns and area 0.05 m² is placed in a magnetic field that changes uniformly from 0.2 T to 0.8 T in 2 seconds. Calculate the magnitude of the induced EMF, showing your working.
Numerical
Q4.
A straight conductor of length 0.5 m moves at a velocity of 4 m/s perpendicular to a magnetic field of flux density 0.6 T. Calculate the EMF induced in the conductor.
Conceptual
Q5.
Explain, in terms of energy conservation, why a current is induced in a coil only while there is relative motion or a changing magnetic field, and not when the coil is stationary in a constant field.

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