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Magnetism

New kid on the Block

 Joined: 22 Aug 2012 Post: 14
22 Aug 2012 21:56:39 IST
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we have a uniform magnetic field 7i + 3j. and acceleration is x i + 7j.how do we find x?
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we have a uniform magnetic field 7i + 3j. and acceleration is x i + 7j.how do we find x?

New kid on the Block

Joined: 28 Jul 2012
Posts: 7
22 Aug 2012 23:18:47 IST
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compairing both sides than x=7

New kid on the Block

Joined: 22 Aug 2012
Posts: 14
23 Aug 2012 21:20:32 IST
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man r u out of ur mind?? one side we have magnetic field and on the other we have acceleration.. how can u compare them both???

Cool goIITian

Joined: 31 Oct 2011
Posts: 35
24 Aug 2012 13:54:54 IST
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Do crossmultiplication and equate it to 0 as magnetic field is always perpendicular to the acceleration.

New kid on the Block

Joined: 22 Aug 2012
Posts: 14
24 Aug 2012 15:21:03 IST
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r u sure magnetic field is always perpendicular to acceleration??

New kid on the Block

Joined: 3 Sep 2012
Posts: 12
3 Sep 2012 18:41:13 IST
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is magnetic field is acts on the perpendicular vlocityvectorand acclerationof particle?

Cool goIITian

Joined: 2 Sep 2012
Posts: 63
14 Sep 2012 19:17:24 IST
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MAGNETIC FIELD IS ALWAYS PERPENDICULAR TO FORCEFORCE=M*acc.acc.is is direction of forceto mag field will be perpendicular to acceleration..use dot product so x=-3

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