An electron is constrained to move along the \( y \)-axis with a speed of \( 0.1 \mathrm{c} \) (c is the speed of light) in the presence of electromagnetic wave, whose electric field is \( \overrightarrow{\mathrm{E}}=30 \hat{\mathrm{j}} \sin \left(1.5 \times 10^{7} \mathrm{t}-5 \times 10^{-2} \mathrm{x}\right) \mathrm{V} / \mathrm{m} \). The maximum magnetic force experienced by the electron will be (Given \( \mathrm{c}=3 \times 10^{8} \mathrm{~ms}^{-1} \) and Electron charge \( = \) \( \left.1.6 \times 10^{-19} \mathrm{C}\right) \)

[JEE Main 2020, 5 Sep (Shift 1)]

Question

An electron is constrained to move along the \( y \)-axis with a speed of \( 0.1 \mathrm{c} \) (c is the speed of light) in the presence of electromagnetic wave, whose electric field is \( \overrightarrow{\mathrm{E}}=30 \hat{\mathrm{j}} \sin \left(1.5 \times 10^{7} \mathrm{t}-5 \times 10^{-2} \mathrm{x}\right) \mathrm{V} / \mathrm{m} \). The maximum magnetic force experienced by the electron will be (Given \( \mathrm{c}=3 \times 10^{8} \mathrm{~ms}^{-1} \) and Electron charge \( = \) \( \left.1.6 \times 10^{-19} \mathrm{C}\right) \)

[JEE Main 2020, 5 Sep (Shift 1)]

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