1.

A long straight wire carries a certain current and produces a magnetic field of \[2\times {{10}^{-4}}\frac{weber}{{{m}^{2}}}\]at a perpendicular distance of 5 cm from the wire. An electron situated at 5 cm from the wire moves with a velocity \[{{10}^{7}}\,m/s\] towards the wire along perpendicular to it. The force experienced by the electron will be (charge on electron\[=1.6\times {{10}^{-19}}N\])

A. Zero
B. \[3.2\,N\]
C. \[3.2\,\times {{10}^{-16}}N\]
D. \[1.6\,\times {{10}^{-16}}N\]
Answer» D. \[1.6\,\times {{10}^{-16}}N\]


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