1061. F
2. T (but i have seen many books giving the ans as false which I dont think as correct)
1..electric lines of force can never be closed curves
2..electric line of force are path followed by a unit positive charge in an elecric field
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12 Answers
106106sorry.. induced electric field lines are closed curves...
but i still think stmnt 2 is true
13what if i giv an initial velocity perpendicular to the electric field nd thn leave d particle in d electric field...the field will deflect the particle but the particle wont exactly travel in the direction of the field evn tho it will gt a component of velocity.....i donno if my explainatn is correct..
106den it mite be correct...
yeah then it is false
but the books i am talking abt say that it wont follow a line of force even if released from rest....
Comment on this pls
3may be ---line of force give the direction of force and hence acceleration which a positive charge would experience there -----but it will move if it is a straight line
62asish it is still not true...
Look at any instant when the body has some velocity. If the acceleration is not in the direction of the velocity, the direction of velocity will change.. and it will be in between the direction of acceleration and original velocity.
for mathematical interpretation, look at
v+a.dt
where v is initial velocityk, a is the acceleration at that instant.
v+at gives the velocity vector just after time dt.
1\overrightarrow v_{final}=\overrightarrow v_{initial} + \overrightarrow a .dt
because we cannot assure that v and a are in the same dir at every instant