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Vectors

Blazing goIITian

 Joined: 28 Apr 2009 Post: 997
29 Apr 2009 17:12:45 IST
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is electric current a vector or a scalar quantity?
Engineering Entrance , JEE Main , JEE Main & Advanced , Mathematics , Vectors

is electric current a vector or a scalar quantity?

Blazing goIITian

Joined: 24 Sep 2008
Posts: 1694
29 Apr 2009 17:14:32 IST
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scalar, doesnt obey vector law~

Blazing goIITian

Joined: 11 Mar 2009
Posts: 5568
29 Apr 2009 17:16:47 IST
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scaler...just for the fact that it denies the vector's law of addition .( next question of urs ::but hey ! it has direction and magnitude ..so y not its a vector? )

Blazing goIITian

Joined: 11 Mar 2009
Posts: 5568
29 Apr 2009 17:18:00 IST
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here is a proper answer :::

ITS A SCALAR .BUT IN CIRCUITS WE DEFINE THAT DIRECTION OF CURRENT IS DE DIRECTION OPP TO THE MOTION OF ELECTRONS.IT DOESNT MESN THAT ITS A VECTOR , IT REPRESENTS DE RATE OF FLOW OF CHARGES. WE KNOW THAT ELECTRIC CHARGE IS A SCALAR QUANTITY.ACCELERATION (RATE OF CHANGE OF VELOCITY )IS A VECTOR, BECAUSE VELOCITY IS A VECTOR.AND THE ANGULAR DISPLACEMENT THETA IS ALSO A SCALAR THOUGH IT HAS DIRECTION OF ANTICLOCKWISE

Blazing goIITian

Joined: 28 Apr 2009
Posts: 997
29 Apr 2009 17:22:50 IST
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thanx nugorama

Cool goIITian

Joined: 11 Jan 2009
Posts: 93
29 Apr 2009 17:25:02 IST
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it is a scalar quantity!!!

Blazing goIITian

Joined: 1 Apr 2007
Posts: 4025
30 Apr 2009 17:17:06 IST
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it is tensor quantity,pressure is also a tensor quantity,etc

Blazing goIITian

Joined: 28 Apr 2009
Posts: 997
1 May 2009 08:31:38 IST
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wat is a tensor quantity?

Blazing goIITian

Joined: 13 Aug 2008
Posts: 1313
5 May 2009 17:16:49 IST
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Tensors are those quantitites that have directional sense along with their magnitude, but do not obey any laws of vector algebra

examples : current, pressure, i think stress also

Blazing goIITian

Joined: 13 Aug 2007
Posts: 687
5 May 2009 17:18:21 IST
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vector

New kid on the Block

Joined: 8 Sep 2011
Posts: 1
8 Sep 2011 07:28:58 IST
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is electric current a vector or a scalar quantity?

New kid on the Block

Joined: 16 Oct 2011
Posts: 2
16 Oct 2011 13:24:44 IST
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It is scalar ...because it doesn't follow vector rule...

New kid on the Block

Joined: 13 Nov 2011
Posts: 2
13 Nov 2011 19:48:44 IST
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vector quantity

New kid on the Block

Joined: 13 Nov 2011
Posts: 9
13 Nov 2011 20:05:59 IST
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Although current and pressure both display direction to the naked perception but they are not vectors because of this that ... Blah blah ... Everybody here are talking bout laws they don't follow ... Who said that they have to follow the laws ... I find everyone here studies and understand only on the basis of laws, definitions and formulas.... And not on the basis of understanding and realisation. I will tell you guys why these tensor quantities are not called vectors without using any law ... Here is goes ..For being a vector ur basic need is to have a well defined direction implicitly attached to u... Pressure generates a force but the direction of the force is generates depends on the alignment of the area on which this force is considered... Change the alignment and the force direction will change ... So pressure as a physical quantity does not have its own direction ... It can generate a force in any direction depending upon the area alignment.

New kid on the Block

Joined: 13 Nov 2011
Posts: 9
13 Nov 2011 20:10:58 IST
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Current direction actually depends on the alignment of the conductor between two points having a potential difference... U place the conductor in a different way ... Current directions will change .. So current instrinsically does not have its own unique direction...hence can't called be a vector....

For being a vector u should have a well defined instrinsic direction.

Email any such queries that are not solved by the experts on this community to

Ahimania@gmail.com and ur doubts will be solved and an additional depth will be given about the related theory ... A

Please don't send easy or trivial doubts that are solved well here itself by anyone... Send only those which genuinely have a twist and are not answered well by experts.

New kid on the Block

Joined: 4 Jul 2012
Posts: 1
4 Jul 2012 16:02:45 IST
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is electric current a vector or a scalar quantity?

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