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21 Feb 2007 07:01:12 IST

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magnetism

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the weber has the dimension of

a.volt/sec

b.volt-sec

c.watt-sec

d.watt/sec

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arvind1990

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21 Feb 2007 08:46:43 IST

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weber is the unit for Flux which is volt-sec.

V=d

/dt, d

=Vdt which is voltsec

rohit rohit

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21 Feb 2007 09:59:44 IST

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pl. explain a bit more

arvind1990

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21 Feb 2007 22:08:13 IST

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Acc,to Faraday's First law,change in magnetic flux induces an emf.

By Faraday's second law,induced emf is directly proportional to the rate of change of magnetic flux.

ie., e= - d

/dt, d

= -edt.

Since the unit of flux is weber, weber=volts*second where the unit of e is volts.

ie.,volts-sec

Bipin Dubey

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Joined: 23 Jan 2007

Posts: 7942

23 Feb 2007 18:18:19 IST

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Arvind is correct.

Alternative way :

Flux =

B.dA

[Flux] = [BA]
         = [EA/v]
   = [VA/vL]
   = volt-sec

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arvind1990

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8 Mar 2007 22:56:21 IST

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