An electron ( (q = -1.6 10^ -19 , C )) moves with speed (1.0 10^ 6

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

An electron (q=−1.6×10−19 Cq = -1.6\times10^{-19}\,\text{C}) moves with speed 1.0×106 m s−11.0\times10^{6}\,\text{m s}^{-1} along the positive yy-axis through simultaneous uniform fields: an electric field 200 V m−1200\,\text{V m}^{-1} along the positive xx-axis and a magnetic field 0.50 T0.50\,\text{T} along the positive zz-axis. What is the magnitude of the net force on the electron at this instant? (a) 5.00×10−14 N5.00 \times 10^{-14}\,\text{N} (b) 7.68×10−14 N7.68 \times 10^{-14}\,\text{N} (c) 8.03×10−14 N8.03 \times 10^{-14}\,\text{N} (d) 1.60×10−13 N1.60 \times 10^{-13}\,\text{N}

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