Moving Charges and Magnetism PYQs - Last 10 Years

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Practice 29 NEET Physics questions from Moving Charges and Magnetism. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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2017-2026

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2017-2026

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Last 10 Years Moving Charges and Magnetism Questions

Showing 29 of 29 filtered questions.

1Moving Charges And Magnetism

Two infinitely long parallel conducting wires $A$ and $B$ carry currents $I$ and $2 I$, respectively, in the same direction. The wire $A$ has uniform mass per unit length $\lambda$ and lies on an insulated floor. The wire $B$ is kept fixed ...

2Moving Charges And Magnetism

A current $l_0$ flows through a metallic circular loop of radius $r$ as shown in the figure. Resistance of the segment $A B C$ is half that of $A D C$. Magnitude of magnetic field at the centre $O$ of the loop is :

3Moving Charges And Magnetism

The figure given below shows a long straight solid wire of circular cross-section of radius ' $a$ ' carrying steady current $I$. The current $I$ is uniformly distributed across its cross-section. The plot which correctly represents the vari...

4Moving Charges And Magnetism

A 100-turn closely wound circular coil of radius 5 cm has a magnetic field of $3.14 \times 10^{-3} \mathrm{~T}$ at its centre. The current flowing through the coil, and the magnitude of the magnetic moment of this coil are, respectively :
(...

5Moving Charges And Magnetism

An electron (mass $9 \times 10^{-31} \mathrm{~kg}$ and charge $1.6 \times 10^{-19} \mathrm{C}$ ) moving with speed $c / 100(c=$ speed of light) is injected into a magnetic field $\vec{B}$ of magnitude $9 \times 10^{-4} \mathrm{~T}$ perpendi...

6Moving Charges And Magnetism

A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is:

7Moving Charges And Magnetism

A 2 amp current is flowing through two different small circular copper coils having radii ratio $1: 2$. The ratio of their respective magnetic moments will be

8Moving Charges And Magnetism

A model for quantized motion of an electron in a uniform magnetic field $B$ states that the flux passing through the orbit of the electron in $n(h l e)$ where $n$ is an integer, $h$ is Planck's constant and $e$ is the magnitude of electron'...

9Moving Charges And Magnetism

A parallel plate capacitor is charged by connecting it to a battery through a resistor. If \(I\) is the current in the circuit, then in the gap between the plates:

10Moving Charges And Magnetism

A tightly wound 100 turns coil of radius \(10 \mathrm{~cm}\) carries a current of \(7 \mathrm{~A}\). The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as \(4 \pi \times 10^{-7} \mathrm{SI}\) u...

11Moving Charges And Magnetism

A uniform electric field and a uniform magnetic field are acting along the same direction in a certain region. If an electron is projected in the region such that its velocity is pointed along the direction of fields, then the electron:

12Moving Charges And Magnetism

A long straight wire of length \(2 \mathrm{~m}\) and mass \(250 \mathrm{~g}\) is suspended horizontally in a uniform horizontal magnetic field of \(0.7 \mathrm{~T}\). The amount of current flowing through the wire will be $$\left(\mathrm{g}...

13Moving Charges And Magnetism

A very long conducting wire is bent in a semi-circular shape from \(A\) to \(B\) as shown in figure. The magnetic field at point \(P\) for steady current configuration is given by :

14Moving Charges And Magnetism

A wire carrying a current \(I\) along the positive \(\mathrm{x}\)-axis has length \(L\). It is kept in a magnetic field \(\overrightarrow{\mathrm{B}}=(2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}) \mathrm{T}\). The magnitude of ...

15Moving Charges And Magnetism

The magnetic field on the axis of a circular loop of radius 100 cm carrying current \(I = \sqrt 2 \,A\), at point 1 m away from the centre of the loop is given by :

16Moving Charges And Magnetism

Two very long, straight, parallel conductors A and B carry current of 5 A and 10 A respectively and are at a distance of 10 cm from each other. The direction of current in two conductors is same. The force acting per unit length between two...

17Moving Charges And Magnetism

The shape of the magnetic field lines due to an infinite long, straight current carrying conductor is

18Moving Charges And Magnetism

A closely packed coil having 1000 turns has an average radius of 62.8 cm. If current carried by the wire of the coil is 1 A, the value of magnetic field produced at the centre of the coil will be (permeability of free space $$ = 4\pi \time...

19Moving Charges And Magnetism

From Ampere's circuital law for a long straight wire of circular cross-section carrying a steady current, the variation of magnetic field in the inside and outside region of the wire is

20Moving Charges And Magnetism

Given below are two statements:
Statement I : Biot-Savart's law gives us the expression for the magnetic field strength of an infinitesimal current element (Idl) of a current carrying conductor only.
Statement II : Biot-Savart's law is anal...

21Moving Charges And Magnetism

A long solenoid of radius 1 mm has 100 turns per mm. If 1 A current flows in the solenoid, the magnetic field strength at the centre of the solenoid is

22Moving Charges And Magnetism

An infinitely long straight conductor carries a current of 5A as shown. An electron is moving with a speed of 105 m/s parallel to the conductor. The perpendicular distance between the electron and the conductor is 20cm at an instant. Calcul...

23Moving Charges And Magnetism

A thick current carrying cable of radius 'R' carries current 'I' uniformly distributed across its cross section. The variation of magnetic field B(r) due to the cable with the distance 'r' from the axis of the cable is represented by :

24Moving Charges And Magnetism

A long solenoid of 50 cm length having 100 turns carries a current of 2.5 A. The magnetic field at the centre of the solenoid is :\(\left( {{\mu _0} = 4\pi \times {{10}^{ - 7}}Tm{{A}^{-1}}} \right)\)

25Moving Charges And Magnetism

A cylinderical conductor of radius R is carrying a constant current. The plot of the magnitude of the magnetic field. B with the distane d from the centre of the conductor, is correctly represented by the figure :

26Moving Charges And Magnetism

Ionized hydrogen atoms and \(\alpha\)-particles with same momenta enters perpendicular to a constant magnetic field, B. The ratio of their radii of their paths rH : r\(\alpha\) will be :

27Moving Charges And Magnetism

A metallic rod of mass per unit length
0.5 kg m–1 is lying horizontally on a smooth
inclined plane which makes an angle of 30° with
the horizontal. The rod is not allowed to slide
down by flowing a current through it when a
magnetic field o...

28Moving Charges And Magnetism

Current sensitivity of a moving coil
galvanometer is 5 div/mA and its voltage
sensitivity (angular deflection per unit voltage
applied) is 20 div/V. The resistance of the
galvanometer is

29Moving Charges And Magnetism

An arrangement of three parallel straight wires placed perpendicular to plane of paper carrying same current \('I'\) along the same direction as shown in fogure. Magnitude of force per unit length on the middle wire \('B'\) is given by