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.Sam.
 one year ago
Best ResponseYou've already chosen the best response.0THAT is what I thought also

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.0i got it wrong, i dont really understand why

DLS
 one year ago
Best ResponseYou've already chosen the best response.1Current is scalar and it cannot be negative.

DLS
 one year ago
Best ResponseYou've already chosen the best response.1\[\LARGE I=  \frac{dQ}{dt}\] indicates that flow of current per unit time is decreasing maybe the question posted is a subpart of another question or perhaps incomplete.

yrelhan4
 one year ago
Best ResponseYou've already chosen the best response.1the convention that we follow is movement of ve charge as current right?

raane
 one year ago
Best ResponseYou've already chosen the best response.0@DLS current can be negative

Shadowys
 one year ago
Best ResponseYou've already chosen the best response.0normally we don't take current as a vector and instead use the length vector instead.

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.0dw:1367418867689:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.0if i assume that way is +ve, then the reverse of it will be ve. in a circuit we assume current directions initially. based on that we get ve or +ve numbers after analysis

Ruchi.
 one year ago
Best ResponseYou've already chosen the best response.1becoz current does'nt follow vector algebra so, it is scalar.

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.0"the convention that we follow is movement of ve charge as current right?" I think this is why. Current is created by flow of electrons which go from  to +, but current is defined as + to .

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.0Still, this site uses no negative sign, it has your answer... http://physics.tutorvista.com/electricityandmagnetism/electriccurrent.html

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.0maybe electric current is a phasor

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.0Hmm, i guess current can be negative, because it does have direction (it can come up like that when using Kirchoff's laws, to find current in loops of a circuit).

yrelhan4
 one year ago
Best ResponseYou've already chosen the best response.1http://openstudy.com/study#/updates/4fb98da9e4b05565342e8394 Look what phoneix_rags and chrsimmo have said.. hmm.. scalar i'd say now..

yrelhan4
 one year ago
Best ResponseYou've already chosen the best response.1and why it is not a vector even though it has direction... i'll give it to ruchi.. still not 100% sure about what current is.. but scalar looks good to me.

yrelhan4
 one year ago
Best ResponseYou've already chosen the best response.1ok another example.. for force on a current carrying wire in a magnetic field F=IdL×B .. here B is a vector.. and dL is a vector. we take the the direction of current to decide the direction of dL.. and it completely depends on what coordinate system we choose.
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