Moving Charges and Magnetism PYQs - Last 5 Years

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Practice 23 KCET 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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Last 5 Years Moving Charges and Magnetism Questions

Showing 23 of 23 filtered questions.

1Moving Charges And Magnetism

A proton, an electron and an $\alpha$-particle enter at right angles to a uniform magnetic field with the same velocity. If $R_p, R_e$ and $R_\alpha$ are the radii of circular paths of these particles, then

2Moving Charges And Magnetism

Biot-Savart law indicates that an electron moving with a velocity $\vec{V}$ produces a magnetic field $\vec{B}$ around it such that

3Moving Charges And Magnetism

Two identical circular current loops carrying equal currents are placed with their axes inclined at $45^\circ$ to each other as shown in the figure. The resultant magnetic field at P is

4Moving Charges And Magnetism

A point charge is placed in a moving train. A passenger A sitting in the train and person B on the ground observe the fields due to this charge. Then

5Moving Charges And Magnetism

Which of the following graphs represents the variation of magnetic field $B$ with perpendicular distance ' $r$ ' from an infinitely long, straight conductor carrying current?

6Moving Charges And Magnetism

Two thin long parallel wires separated by a distance ' $r$ ' from each other in vacuum carry a current of I ampere in opposite directions. Then, they will

7Moving Charges And Magnetism

A solenoid is 1 m long and 4 cm in diameter. It has five layers of windings of 1000 turns each and carries a current of 7A. The magnetic field at the centre of the solenoid is

8Moving Charges And Magnetism

A square loop of side 2 m lies in the Y-Z plane in a region having a magnetic field $\overrightarrow{\mathrm{B}}=(5 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}) \mathrm{T}$. The magnitude of magnetic flux through the square loop ...

9Moving Charges And Magnetism

Identify the correct statement

10Moving Charges And Magnetism

A uniform magnetic field of strength $B=2 \mathrm{mT}$ exists vertically downwards. These magnetic field lines pass through a closed surface as shown in the figure. The closed surface consists of a hemisphere $S_1$, a right circular cone $S...

11Moving Charges And Magnetism

19. A particle of specific charge $q / m=\pi \mathrm{C} \mathrm{kg}^{-1}$ is projected the origin towards positive $X$-axis with the velocity $10 \mathrm{~ms}^{-1}$ in a uniform magnetic field $\mathbf{B}=-2 \hat{\mathbf{k} T}$. The velocit...

12Moving Charges And Magnetism

A coil having 9 turns carrying a current produces magnetic field $B_1$ at the centre. Now the coil is rewounded into 3 turns carrying same current. Then, the magnetic field at the centre $B_2=$

13Moving Charges And Magnetism

A moving electron produces

14Moving Charges And Magnetism

The magnetic field at the centre of a circular coil of radius $R$ carrying current $I$ is 64 times the magnetic field at a distance $x$ on its axis from the centre of the coil. Then, the value of $x$ is

15Moving Charges And Magnetism

A proton and an alpha-particle moving with the same velocity enter a uniform magnetic field with their velocities perpendicular to the magnetic field. The ratio of radii of their circular paths is

16Moving Charges And Magnetism

The torque acting on a magnetic dipole placed in uniform magnetic field is zero, when the angle between the dipole axis and the magnetic field is .........

17Moving Charges And Magnetism

A positively charged particle \(q\) of mass $m$ is passed through a velocity selector. It moves horizontally rightward without deviation along the line \(y=\frac{2 m v}{q B}\) with a speed \(v\). The electric field is vertically downwards a...

18Moving Charges And Magnetism

A charged particle is subjected to acceleration in a cyclotron as shown. The charged particle undergoes increase in its speed

19Moving Charges And Magnetism

Which of the following statements proves that Earth has a magnetic field ?

20Moving Charges And Magnetism

A circular coil of wire of radius \(r\) has \(n\) turns and carries a current \(I\). The magnetic induction \(B\) at a point on the axis of the coil at a distance \(\sqrt{3} r\) from its centre is

21Moving Charges And Magnetism

A solenoid of length \(50 \mathrm{~cm}\) having 100 turns carries a current of \(2.5 \mathrm{~A}\). The magnetic field at one end of the solenoid is

22Moving Charges And Magnetism

A proton moves with a velocity of \(5 \times 10^6 \hat{\mathbf{\widehat j} m \mathrm{~m}^{-1}}\) through the uniform electric field,
$$\mathbf{\overrightarrow E}=4 \times 10^6[2 \hat{\mathbf{i}}+0.2 \hat{\mathbf{j}}+0.1 \hat{\mathbf{k}}] \...

23Moving Charges And Magnetism

A metallic rod of mass per unit length \(0.5 \mathrm{~kg} \mathrm{~m}^{-1}\) is lying horizontally on a smooth inclined plane which makes an angle of \(30^{\circ}\) with the horizontal. A magnetic field of strength \(0.25 \mathrm{~T}\) is a...