MHT CET 2024 15th May Evening Shift | Moving Charges and Magnetism Question 18 | Physics

An electron is revolving in a circular orbit of radius $r$ in a hydrogen atom. The angular momentum of the electron is L . The relation between dipole moment (m) associated with it, gyromagnetic ratio ( R ) and L is

$\mathrm{m}=-\frac{\mathrm{L}}{\mathrm{R}}$

$\mathrm{m}=-\mathrm{RL}$

$\mathrm{m}=-\mathrm{RL}^2$

$\mathrm{m}=\frac{\mathrm{R}}{\mathrm{L}}$

MHT CET 2024 15th May Evening Shift

MCQ (Single Correct Answer)

-0

Three infinite straight wires $\mathrm{A}, \mathrm{B}$ and C carry currents as shown in figure. The resultant force on wire $B$ is directed

MHT CET 2024 15th May Evening Shift Physics - Moving Charges and Magnetism Question 15 English

towards A

towards C

perpendicular to the plane of page

upwards

MHT CET 2024 15th May Morning Shift

MCQ (Single Correct Answer)

-0

Two parallel wires separated by distance 'b' are carrying equal current ' $I$ ' in the same direction. The force per unit length of the wire is

$\frac{\mu_0}{4 \pi}\left(\frac{I}{b^2}\right)$

$\frac{\mu_0}{4 \pi}\left(\frac{\mathrm{I}^2}{\mathrm{~b}^2}\right)$

$\frac{\mu_0}{4 \pi}\left(\frac{\mathrm{I}^2}{b}\right)$

$\frac{\mu_0}{4 \pi}\left(\frac{2 I^2}{b}\right)$

MHT CET 2024 15th May Morning Shift

MCQ (Single Correct Answer)

-0

Magnetic induction produced at the centre of a circular loop of radius ' $R$ ' carrying a current is ' B '. The magnetic moment of the loop is ( $\mu_0=$ permeability of free space)

$\frac{\mathrm{BR}^3}{2 \pi \mu_0}$

$\frac{2 \pi \mathrm{BR}^3}{\mu_0}$

$\frac{\mathrm{BR}^2}{2 \pi \mu_0}$

$\frac{2 \pi \mathrm{BR}^2}{\mu_0}$

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