PYQ Vault

Day 48: MH HSC Class 12 Physics

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

  1. Question 1

    Magnetic Fields due to Electric Current. Asked once: Feb 2023 (same type asked 2 times)

    Answer the following questions:
    Q. 2(ii)
    What is the value of force on a closed circuit in a magnetic field?

  2. Question 2

    Magnetic Materials. Asked once: Mar 2022 (same type asked 2 times)

    Q. 16
    What is magnetization, magnetic intensity and magnetic susceptibility?

  3. Question 3

    Magnetic Materials. Asked once: Feb 2023 (same type asked 2 times)

    Answer the following questions:
    Q. 2(viii)
    Write the mathematical formula for Bohr magneton for an electron revolving in nthn^{\text{th}} orbit.

  4. Question 4

    Oscillations. Asked once: Mar 2019 (same type asked 2 times)

    Q. 11 (OR)
    A body of mass 1 kg is made to oscillate on a spring of force constant 15 N/m. Calculate (i) angular frequency (ii) frequency of vibrations.

  5. Question 5

    Semiconductor Devices. Asked once: Feb 2024 (same type asked 2 times)

    Q. 17
    Define the current gain αDC\alpha_{DC} and βDC\beta_{DC} for a transistor. Obtain the relation between them.