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- If y>x, the force will act along y-axis
- No force will act on charged particle if x=y
- If x>y,F∝(x2−y2)
- If x>y, the force will act along z-axis

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Solution

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→B=y^i+x^j

→f=q(→v×→B)=q((x^i+y^j)×(y^i+x^j))=q(x2−y2)^k

If x=y, →f=q(x2−y2)=q(0−0)=0

If x>y, →f=q(x2−y2)^k>0

If y>x, →f=q(x2−y2)^k<0 and it points in the −vez− axis.

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