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Day 21: MHT-CET Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Current Electricity. This type asked 7 times: 3 May 2023 S1, 9 May 2024 S2, 10 May 2024 S2, 14 May 2024 S2, 19 Apr 2025 S1, 22 Apr 2025 S1, 16 Apr 2026 S2. This one: 16 Apr 2026 S2 See all 7 of this type

    129
    A galvanometer has resistance G and range Vg. How much resistance is required to read voltage up to V volt?

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  2. Question 2

    Electromagnetic Induction. This type asked 7 times: May 2022 S1, 4 May 2023 S1, 16 May 2023 S1, 10 May 2024 S1, 22 Apr 2025 S2, 26 Apr 2025 S2, 16 Apr 2026 S2. This one: 16 Apr 2026 S2 See all 7 of this type

    135
    A graph of magnetic flux (Φ\Phi) versus current (I) is shown for four inductors A, B, C, D. The smallest value of self inductance is for inductor.

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  3. Question 3

    Magnetic Fields Due to Electric Current. This type asked 7 times: 4 May 2023 S1, 10 May 2023 S2, 12 May 2024 S1, 12 May 2024 S2, 11 Apr 2026 S2, 13 Apr 2026 S2, 15 Apr 2026 S1. This one: 15 Apr 2026 S1 See all 7 of this type

    132
    A circular coil of 'N' turns and diameter 'd' carries current 'I'. It is unwound and rewound to make another coil of diameter '2d', current 'I' remaining the Same. The ratio of magnetic moments of the new coil to the original coil is

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  4. Question 4

    Gravitation. This type asked 7 times: May 2022 S1, 11 May 2023 S1, 9 May 2024 S1, 12 May 2024 S2, 13 May 2024 S2, 25 Apr 2025 S2, 26 Apr 2025 S2. This one: 26 Apr 2025 S2 See all 7 of this type

    33
    The depth at which acceleration due to gravity becomes gn\frac{g}{n} is (R=(R = radius of earth, g=g = acceleration due to gravity) ( n=n = integer)

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  5. Question 5

    Thermal Properties of Matter. This type asked 7 times: 3 May 2023 S1, 3 May 2023 S2, 9 May 2023 S1, 16 May 2023 S2, 11 May 2024 S2, 19 Apr 2025 S1, 26 Apr 2025 S1. This one: 26 Apr 2025 S1 See all 7 of this type

    28
    The difference in length between two rods A and B is 60 cm at all temperatures. If αA=18×10−6/ ∘C\alpha_{A}= 18 \times10^{- 6}/\ ^{\circ}C and αB=27×10−6/ ∘C\alpha_{B}= 27 \times10^{- 6}/\ ^{\circ}C, then the length of rodArodA and rodBrodB at 0∘C0^{\circ}C is respectively

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