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Day 289: MHT-CET Physics

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

  1. Question 1

    Magnetic Fields Due to Electric Current. Asked once: 15 May 2023 S2 (same type asked 4 times) See all 4 of this type

    42
    Three infinite straight wires A, B and C carry currents as shown in figure. The resultant force on wire B is directed

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  2. Question 2

    Magnetic Materials. Asked once: 15 May 2023 S2 (same type asked 4 times) See all 4 of this type

    39
    An electron is revolving in a circular orbit of radius rr in a hydrogen atom. The angular momentum of the electron is LL. The relation between dipole moment mm associated with it, gyromagnetic ratio RR and LL is

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  3. Question 3

    Semiconductor Devices. Asked once: 25 Apr 2025 S1 (same type asked 4 times) See all 4 of this type

    47
    In which of the following figures, the p.n. junction diode is reverse biased? (A) (B) (C) (D)

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  4. Question 4

    Motion in a Plane. Asked once: 15 Apr 2026 S2 (same type asked 4 times) See all 4 of this type

    103
    A batsman hits a ball with a velocity 'v', making an angle of 60∘60^\circ with the vertical. After some time direction of velocity is making an angle of 60∘60^\circ with the horizontal. The speed of the ball at this instant is [cos⁡(60∘)=12,cos⁡(30∘)=32]\left[\cos(60^\circ) = \dfrac{1}{2}, \cos(30^\circ) = \dfrac{\sqrt{3}}{2}\right]

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  5. Question 5

    AC Circuits. Asked once: 25 Apr 2025 S2 (same type asked 4 times) See all 4 of this type

    10
    In an LRLR circuit, the value of LL is (0⋅3π)\left( \frac{0 \cdot 3}{\pi} \right) henry and the value of R is 40Ω40\Omega, If in the circuit, an alternating e.m.f of 230 V at 50 cycles per second is connected, the impedance of the circuit and current will be respectively

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