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An ionized gas contains both +ve and -ve ions which are initially at rest. The gas is subjected to vecE toward positive x-axis, magnetic field along +ve z axis. Then.find the direction of deflection of a) +vecharged ions b) -ve charged ions |
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Answer» Solution :`vecF=q(vecvxxvecB)` In case of +ve charged ions, direction of `vecF=+(hatixxhatk)` (`VECV` direction is same as `VECE`)=`-HATJ` i.e +ve charged ions deflect towards -ve y-axis in case of -ve charged ions direction of `vecF` `=-(-hatixxhatk)` (`becausevecV` direction is OPP to `vecE`) =`-hatj` i.e -ve charged ions ALSO deflect towards -ve y-axis |
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