Test: Motion in Combined Electric & Magnetic Fields - NEET MCQ

# Test: Motion in Combined Electric & Magnetic Fields - NEET MCQ

Test Description

## 5 Questions MCQ Test Topic-wise MCQ Tests for NEET - Test: Motion in Combined Electric & Magnetic Fields

Test: Motion in Combined Electric & Magnetic Fields for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Test: Motion in Combined Electric & Magnetic Fields questions and answers have been prepared according to the NEET exam syllabus.The Test: Motion in Combined Electric & Magnetic Fields MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Motion in Combined Electric & Magnetic Fields below.
Solutions of Test: Motion in Combined Electric & Magnetic Fields questions in English are available as part of our Topic-wise MCQ Tests for NEET for NEET & Test: Motion in Combined Electric & Magnetic Fields solutions in Hindi for Topic-wise MCQ Tests for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: Motion in Combined Electric & Magnetic Fields | 5 questions in 10 minutes | Mock test for NEET preparation | Free important questions MCQ to study Topic-wise MCQ Tests for NEET for NEET Exam | Download free PDF with solutions
Test: Motion in Combined Electric & Magnetic Fields - Question 1

### Ratio of magnetic force Fm and electric force Fe acting on a charge getting undeflected through the field is

Detailed Solution for Test: Motion in Combined Electric & Magnetic Fields - Question 1

if the particle is undeflected, then the magnetic force equals the electric force:
q x v x B=q x E
B is the magnitude of the magnetic field
E is the magnitude of the electric field
v is the magnitude of the velocity of the particle.
If the forces are equal then:
v=E/B
For undeflected v=1
E/B=1

Test: Motion in Combined Electric & Magnetic Fields - Question 2

### Time taken by an ion to describe a semicircular path, in a cyclotron

Detailed Solution for Test: Motion in Combined Electric & Magnetic Fields - Question 2

We also know for a circular motion time period = 2πm/qb as the charge in question has. Constant q, mass is also constant, b is also constant thus time period for semicircular path is constant.

 1 Crore+ students have signed up on EduRev. Have you?
Test: Motion in Combined Electric & Magnetic Fields - Question 3

### If a charged particle goes undeflected in a region containing electric and magnetic fields. Select all of the following statements that must be true for this. 1. must be perpendicular to 2. must be perpendicular to 3.  must be perpendicular to  4.  E must be equal to vB​

Detailed Solution for Test: Motion in Combined Electric & Magnetic Fields - Question 3

If a charged particle goes unaccelerated in a region containing
electric and magnetic fields,

Test: Motion in Combined Electric & Magnetic Fields - Question 4

The dipole moment of a current loop is independent of:

Detailed Solution for Test: Motion in Combined Electric & Magnetic Fields - Question 4

Dipole moment of a current loop
M=N ×I × A
So, it is dependent on current in the loop, number of turns and area of the loop.
It is independent of the magnetic field in which it is situated.

Test: Motion in Combined Electric & Magnetic Fields - Question 5

If cathode rays are projected at right angles to a magnetic field, their trajectory is

Detailed Solution for Test: Motion in Combined Electric & Magnetic Fields - Question 5

The magnetic force acts perpendicular to the velocity of the particle. This  causes circular motion. In the magnetic field the speed and kinetic energy of the particle remain constant, but the direction is altered at each instant by the perpendicular magnetic force.

## Topic-wise MCQ Tests for NEET

9 docs|1272 tests
Information about Test: Motion in Combined Electric & Magnetic Fields Page
In this test you can find the Exam questions for Test: Motion in Combined Electric & Magnetic Fields solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Motion in Combined Electric & Magnetic Fields, EduRev gives you an ample number of Online tests for practice

## Topic-wise MCQ Tests for NEET

9 docs|1272 tests