Posted by **hannah** on Sunday, January 24, 2010 at 1:06pm.

In the product F = qB (vectors), take q = 2 (neglecting the units of charge, q) and v = 2.0 i + 4.0 j + 6.0 k and F = 4.0 i + (-20 j) + 12 k . What then is B in unit-vector notation if Bx=By ?

- physics calc based -
**drwls**, Sunday, January 24, 2010 at 1:26pm
Don't you mean the vector cross product

F = q V x B ?

You need to write an equation for the three components of B (with Bx = By) by rewriting the above equation for the individual components. Then solve for the Bz and Bx=By components

- physics calc based -
**Dom**, Thursday, February 4, 2010 at 10:08pm
Had problems with the same question.

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