magnetism

An observer A and a charge Q are fixed in a stationary frame F. Another observer B is fixed in a frame f, which is moving wrt to F. then

a) both A and B will observe electric fields.
b) both A and B will observe magnetic fields
c) neither A nor B will observe magnetic fields
d) B will observe a magnetic field, but A will not

please give explanation.

19 Answers

1
voldy ·

theory of relativity

39
Dr.House ·

nishant bhaiyan explain...............

1
skygirl ·

arey khud ka mag field khud kaise experience karega ?

1
Philip Calvert ·

wire not reqd i think
moving charges produce magnetic field ..

more details see satyas corner

1
skygirl ·

arey this is in HCVerma .. magnetic fields chapter...

but that is oonly i wwas asking... here there's no current or any wire ...

how come anything will occur ?????????????

1
voldy ·

there was an interesting Q in class

a person is moving along with the current such that the relative motion b/w a given electron and him is zero will he observe a magnetic field .?

our sir explained it using relativity dint understnad it though :P

39
Dr.House ·

ya this is the whole question,

AND WHY IS NO ONE THINKING ABOUT `A`?

1
skygirl ·

but is this the whole question ??

1
skygirl ·

no bhargav .. not tukka.. have reason...

1
Philip Calvert ·

i dont think that is reqd here is it??

plz explain how then !

1
voldy ·

and ; D

and a bit of relativity is necessary I think . I dunno that.
Admins need to explain.

1
Philip Calvert ·

ans is D

@srinath wat relativity??

1
voldy ·

there's a involvement of relativity here .
I'm damn sure .
Admins should elaborate.
Don't wish to spoil the topic with clumsy explanation.

1
skygirl ·

well..

ans will be no one ..

if there's no wire or somethinng nearby..

39
Dr.House ·

no explanation? sky, tukka ?

1
skygirl ·

oh yes its D ..

shit ...

1
skygirl ·

u sure ans is D ?

1
voldy ·

the thing at first is not a smile ans is D .sry typo problem .:P

1
skygirl ·

ans B ??

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