MHT CET 2025 5th May Evening Shift | Moving Charges and Magnetism Question 1 | Physics

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

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

$3 R$

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

$2 R$

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

Lorentz magnetic force is acting on a particle of charge q moving with velocity $\vec{V}$ in a magnetic field $\vec{B}$. The work done by this force on the charged particle is

zero

one

infinity

$\mathrm{qB} \sin \theta$

MHT CET 2025 26th April Evening Shift

MCQ (Single Correct Answer)

-0

Two wires of equal lengths are bent in the form of a square and a circular loop. They are suspended in a uniform magnetic field and same current is passed through them. Torque experienced by

square loop is greater.

both the loops is same but not zero.

both the loops is zero.

circular loop is maximum.

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