MHT CET 2026 19th April Morning Shift | Moving Charges and Magnetism Question 10 | Physics

Two thin long parallel wires, $W_1$ and $W_2$ separated by distance '$a$', carry currents $i$ and $3i$ respectively in the same direction. The magnitude of the force per unit length exerted by wire $W_1$ on wire $W_2$ is

$\dfrac{\mu_0\, i^2}{2\pi\, a}$

$\dfrac{\mu_0\, i^2}{\pi\, a}$

$\dfrac{3\mu_0\, i^2}{2\pi\, a}$

$\dfrac{2\mu_0\, i^2}{3\pi\, a}$

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

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

$3 R$

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

$2 R$

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

$\mathrm{qB} \sin \theta$

PREVIOUS NEXT

MHT CET Subjects

Browse all chapters by subject

Chemistry

Physical Chemistry

Some Basic Concepts of Chemistry Atomic Structure States of Matter Thermodynamics Chemical Equilibrium Ionic Equilibrium Liquid Solution Redox Reactions Surface Chemistry Solid State Electrochemistry Chemical Kinetics Nuclear Chemistry

Inorganic Chemistry

Periodic Table and Periodicity Chemical Bonding and Molecular Structure Metallurgy Hydrogen and It's Compounds s-Block Elements p-Block Elements d and f Block Elements Coordination Compounds Environmental Chemistry

Organic Chemistry

IUPAC Nomenclatures General Organic Chemistry Isomerism Hydrocarbons Haloalkanes and Haloarenes Alcohol, Phenols and Ethers Aldehyde and Ketone Carboxylic Acids and Its Derivatives Compounds Containing Nitrogen Polymers Biomolecules Chemistry in Everyday Life Practical Organic Chemistry