why will the charged particle move in a straight line when projected from rest in a region of steady and uniform elec and mag fields which are parallel to each other?
                   

3 years ago

Share

Answers : (2)

                                        

magnetic force on particle = qvBsin@


 


when velocity is parallel to magnetic then @ = 0 or 180,


then magnetic force is qvBsin0 = 0




electric force is F = qE


 


net force  =  electric force+ magnetic force = qE




net force is electric force along the direction of motion...so the motion of charged particle is straight line acclerated motion...

3 years ago
                                        

As the charge is at rest, it will accelerate by elctric field along the line of electric field ( magnetic field only change direction of charge).


Now as the magnectic field is parallal to electric field, so charge will move along magnetic field.


From the forluma, Fm=qvBsinθ as the θ=0 Fm=0, hence no net force magnetic force acting on it (and hence it will not change its direction)


From above result, as only eletric force acting on it, charge particle will move in a straight line (along the line of electric field due to eletric force)

3 years ago

Post Your Answer

More Questions On IIT JEE Entrance Exam

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
how to prepare iit-jee mains exam?
 
 
Choose Proper Study Material: It is a common misconception among aspirants that preparing from a number of books will help them in getting good marks. The truth is that referring the right...
  img
Nishant Vora one month ago
 
First of all i think if you prepared for IIT then u will surely successful in AIEEE. Because jEE & AIEEE almost same standard but IIT is the most toughest exam in the field of under...
 
roschinkelley one month ago
Hi, I’m aiming b/w 3500 to 4000 rank in jee advanced. Can someone tell me the required books and material needed for this rank. Also, is HC Verma enough for this rank?
 
 
yap . But H.C.Verma is nice book . See if you can get Haliday,Resnick,Walker. For Maths, books of Asit Das Gupta and R.D.Sharma are best .
 
Piku 4 months ago
 
Firstly ur basics need to be strong. You can practice from H C Verma. If your concepts and basics are clear then u can refer I.E.Irodov.
 
MAlav Shah 4 months ago
 
its better to carry even (pc.agarwal) book with you, for other subjects just give more preference to arihant series or cengage series
 
dheeraj 4 months ago
Hello Sir/Madam I am a student of class 12 and an aspirant of IIT JEE so can you please give me some tips about how to manage my time and cover the whole syllabus as only 8 months are left...
 
 
You should be patient and be able to manage your time to the maximum efficiency. By time management, I mean you should be able to extract maximum self-study time from a day and allocate...
  img
Aziz Alam 4 months ago
 
Sir can you please suggest me something for my doubts any place where I can get my doubts cleared.
 
Anchit 4 months ago
which books are better for cracking AIIMS exam?
 
 
Donot go through many books. Be selective in checking out a good book and work around it. Read one good book but throughly. NCERT Books are a must. NCERT Books Physics: CBSE PMT set of 3...
  img
Sunil Kumar FP 27 days ago
Sir, How can I prepare for kypy 2014 exam? I belong sx group. what is the syllabus. thank you
 
 
Hi, In order to prepare for KVPY you need a proper guidnace for KVPY as well as the level of the study must meet the KVPY requirements. U can join askiitians, where our dedicated iitian...
  img
Yash Baheti 5 months ago
Sir, I have dropped this year for jee preparation and don’t want to join any coaching. So please suggest me the order to be followed, and the books, (i have nayarana packages also).
 
 
If you dont want to join in any coaching and want to do the self preparation, then first of all collect the best material and books for IIT JEE. Because if you have good books your half...
  img
Ramreddy 5 months ago
View all Questions »