MHT CET 2026 20th April Morning Shift | Moving Charges and Magnetism Question 4 | Physics

A square loop ABCD of side L carrying a current $I_1$ is placed at a distance $(L/3)$ from a conductor coplaner with a straight conductor XY carrying current $I_2$ as shown in figure. The net force on the loop will be ($\mu_0$ = magnetic permeability)

$\dfrac{\mu_0 I_1 I_2}{3\pi}$

$\dfrac{3\mu_0 I_1 I_2}{8\pi}$

$\dfrac{9\mu_0 I_1 I_2}{8\pi}$

$\dfrac{3\mu_0 I_1 I_2}{4\pi}$

MHT CET 2026 20th April Morning Shift

MCQ (Single Correct Answer)

-0

A long solenoid carrying a current produces a magnetic field '$B$' along its axis. If the currunt is tripled and the number of turns per cm is halved then new value of magnetic field will be

$\dfrac{B}{2}$

$B$

$\dfrac{3}{2}B$

$3B$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

A wire of length ' $L$ ' carries a current ' $I$ '. If the wire is turned into a square coil of single turn, the maximum magnitude of the torque in a given magnetic field $(\overrightarrow{\mathrm{B}})$ is

$\frac{\mathrm{IBL}}{16}$

$\frac{\mathrm{IBL}}{8}$

$\frac{\mathrm{IBL}^2}{8}$

$\frac{\mathrm{IBL}^2}{16}$

MHT CET 2025 5th May Evening Shift

MCQ (Single Correct Answer)

-0

A circular coil carrying current has radius ' $R$ '. The distance from the centre of the coil on the axis where the magnetic induction will be $\frac{1}{27}$ th of its value at the centre of the coil is

$3 \sqrt{2} \mathrm{R}$

$3 R$

$2 \sqrt{2} \mathrm{R}$

$2 R$

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