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Self-inductance of a solenoid from the current and the flux linked with each turn

The same question, asked 3 times: 4 May 2023 S2*, 11 May 2024 S1*, 14 May 2024 S2. Every wording below, oldest first.

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  1. Question 1

    4 May 2023 S2

    45
    A current of 0.5 A is passed through winding of a long solenoid having 400 turns. The magnetic flux linked with each turn is [3]×10−3[3] \times 10^{-3} Wb. The self inductance of the solenoid is

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  2. Question 2

    11 May 2024 S1

    14
    When a current of 1 A is passed through a coil of 100 turns, the flux associated with it is 2.5×10−52.5 \times 10^{-5} Wb/turn. The self inductance of the coil in millihenry is

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  3. Question 3

    14 May 2024 S2

    32
    A long solenoid has 1500 turns. When a current of 35 A flows through it, the magnetic flux linked with each turn of the solenoid is 2.8×10−2 Wb2.8 \times 10^{-2}\,\text{Wb}. The self-inductance of the solenoid is

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