Vedclass
Class 12PhysicsMoving Charges and MagnetismBiot-Savart's Law and its application
Easy

If a positive ion is moving away from an observer with some acceleration,then the lines of force of magnetic induction will be

  • A
    closed curves in anti-clockwise direction.
  • B
    closed curves in clockwise direction.
  • C
    in the direction of path of positive ion in straight and parallel line,going away from the observer.
  • D
    in direction of path of positive ion,in straight and parallel lines towards the observer.
Share

Explore More

Browse All

Question Bank

12

All Subjects

Class 12 Questions

Class 12

Physics Questions

Chapter

Moving Charges and Magnetism

Subtopic

Biot-Savart's Law and its application

Similar Questions

$A$ circular arc of radius $r$ carrying current $I$ subtends an angle $\frac{\pi}{16}$ at its centre. The radius of the metal wire is uniform. The magnetic induction at the centre of the circular arc is [where $\mu_0$ is the permeability of free space].

DifficultMHT CET 2020
View Solution

Two long straight parallel conductors carry currents $I_1$ and $I_2$ $(I_1 > I_2)$. When the direction of $I_1$ and $I_2$ is the same,the magnetic field intensity midway between the two conductors is $20 \mu T$. If the direction of $I_2$ is reversed,the field intensity becomes $50 \mu T$. The ratio $I_2 / I_1$ is:

MediumMHT CET 2025
View Solution

Charge $q$ is uniformly spread on a thin ring of radius $R.$ The ring rotates about its axis with a uniform frequency $f \ Hz.$ The magnitude of magnetic induction at the center of the ring is

MediumAIPMT 2010
View Solution

Two infinitely long wires are placed at $(1 \text{ cm}, 1 \text{ cm})$ and $(1 \text{ cm}, -1 \text{ cm})$ with $1 \text{ A}$ current in each and in the same directions perpendicular to the $xy$-plane. Let the magnetic field due to these current-carrying wires at the origin be $B$. If $B_0$ is the magnitude of the field if only one of them was present,then $\frac{|B|}{B_0}$ is

EasyAP EAMCET 2022
View Solution

Consider the circular loop carrying current $i$ as shown in the figure. The magnetic field at the central point $O$ is

DifficultAIIMS 2015
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo