Teaching UP PGT Mock Test Series 2024 Physics Moving Charges and Magnetism Magnetic Field due to a Current Element
In the product
\(\vec{F} =q(\rm\vec{V}\times \vec{B})\)
\(=q\ \vec{v} \times(B \hat{i} + B \hat{j} + B_0 \hat{k)}~~ \ and ~\ \vec{F}=4\hat{i}-20\hat{j}+12\hat{k}\)
For q = 1 and and \(\rm\vec{v} = 2 \hat{i} + 4\hat{j}+6\hat{k} \) and \(\vec{F} = 4\hat{i}-20\hat{j}+12\hat{k}\)
What will be the complete expression for \(\vec{B}\) ?1
\(6\hat{i}+6\hat{j}-8\hat{k}\)
2
\(-8\hat{i}+8\hat{j}-6\hat{k}\)
3
\(-6\hat{i}-6\hat{j}-8\hat{k}\)
4
\(8\hat{i}+8\hat{j}-6\hat{k}\)