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Direction of the induced current by Lenz's law

This type of question, asked 3 times: 2021 Paper 5, 2021 Paper 23, 22 Jan 2026 S1. All 3 questions below, oldest first.

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  1. Question 1

    2021 Paper 5

    20
    A conducting bar of length LL is free to slide on two parallel conducting rails as shown in the figure Two resistors R1R_{1} and R2R_{2} are connected across the ends of the rails. There is a uniform magnetic field B→\overrightarrow{B} pointing into the page. An external agent pulls the bar to the left at a constant speed vv. The correct statement about the directions of induced currents I1I_{1} and I2I_{2} flowing through R1R_{1} and R2R_{2} respectively is:

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  2. Question 2

    2021 Paper 23

    17
    A coil is placed in a magnetic field B→\overrightarrow{B} as shown below: A current is induced in the coil because B→\overrightarrow{B} is:

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  3. Question 3

    22 Jan 2026 S1

    20
    Three identical coils C1,C2C_{1},C_{2} and C3C_{3} are closely placed such that they share a common axis. C2C_{2} is exactly midway. C1C_{1} carries current II in anti-clockwise direction while C3C_{3} carries current II in clockwise direction. An induced current flows through C2C_{2} will be in clockwise direction when

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