MHT CET 2025 26th April Morning Shift | Moving Charges and Magnetism Question 1 | Physics

An infinitely long straight conductor carrying current ' $I$ ' is bent into a shape as shown in figure. The radius of the circular loop is ' $r$ '. The magnetic induction at the centre of the loop at point ' O ' is

( $\mu_0=$ permeability of free space)

MHT CET 2025 26th April Morning Shift Physics - Moving Charges and Magnetism Question 2 English

zero

$\frac{\mu_0 \mathrm{I}}{4 \pi \mathrm{r}}(\pi-1)$

$\frac{\mu_0 \mathrm{I}}{2 \pi \mathrm{r}}(\pi+1)$

$\frac{\mu_0 \mathrm{I}}{2 \pi \mathrm{r}}(\pi-1)$

MHT CET 2025 25th April Evening Shift

MCQ (Single Correct Answer)

-0

In the following figure magnitude of the magnetic field at the point $p$ is

MHT CET 2025 25th April Evening Shift Physics - Moving Charges and Magnetism Question 1 English

$\frac{\mu_0 I}{4 \pi r}+\frac{\mu_0 I}{r}$

$\frac{\mu_0 I}{4 \pi r}+\frac{\mu_0 I}{2 r}$

$\frac{\mu_0 \mathrm{I}}{4 \pi \mathrm{r}}+\frac{\mu_0 \mathrm{I}}{4 \mathrm{r}}$

$\frac{\mu_0 \mathrm{I}}{4 \pi \mathrm{r}}-\frac{\mu_0 \mathrm{I}}{4 \mathrm{r}}$

MHT CET 2025 25th April Evening Shift

MCQ (Single Correct Answer)

-0

A circular coil carrying current ' T ' has a radius ' $r$ ' and ' $n$ ' turns. The magnetic field along the axis of a coil at a distance ' $2 \sqrt{2} r$ ', from its centre is ( $\mu_0=$ permeability of free space, $n$ is very small)

$\frac{\mu_0 \mathrm{nI}}{9 \mathrm{r}}$

$\frac{\mu_0 n I}{18 r}$

$\frac{\mu_0 \mathrm{nI}}{54 \mathrm{r}}$

$\frac{\mu_0 \mathrm{nI}}{27 \mathrm{r}}$

MHT CET 2025 25th April Morning Shift

MCQ (Single Correct Answer)

-0

The magnetic field intensity H at the centre of a long solenoid having $n$ turns per unit length and carrying a current I, when no material is kept in it is ( $\mu_0=$ permeability of free space)

$\mu_0 \mathrm{nI}$

$\frac{\mathrm{n}}{\mathrm{I}}$

$\frac{\mu_0}{\mathrm{nI}}$

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