A light Beam travelling in the $$x-direction$$ is described by the electric field $$Ey=600Vm$$ sinwt−xc. An electron is constrained to move along the $$Y-direction$$ with a speed of $$2$$×$$107m/s$$.Find the maximum magnetic force on the electron.

Correct option is 26.4×10−18N

Questions

A light Beam travelling in the x-direction is described by the electric field $E_{y} = 600 (\frac{V}{m}) \sin w (t - \frac{x}{c}) .$ An electron is constrained to move along the Y-direction with a speed of $2 \times 10^{7} m / s .$ Find the maximum magnetic force on the electron.

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3.2×10−18N

6.4×10−18N

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4.8×10−18N

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detailed solution

Correct option is B

B0=E0C=6003×108=2×10−6T Fm=eVB0=1.6×10−19×2×107×2×10−6=6.4×10−18N

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A light Beam travelling in the x-direction is described by the electric field Ey=600Vm sinwt−xc. An electron is constrained to move along the Y-direction with a speed of 2×107m/s.Find the maximum magnetic force on the electron.

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Ready to Test Your Skills?

free study material

A light Beam travelling in the x-direction is described by the electric field $E_{y} = 600 (\frac{V}{m}) \sin w (t - \frac{x}{c}) .$ An electron is constrained to move along the Y-direction with a speed of $2 \times 10^{7} m / s .$ Find the maximum magnetic force on the electron.