An electron gun emits electrons of energy 2 keV travelling in positive x-direction. The electrons are required to hit point S where GS=0.1 m, and the line GS makes an angle of 60∘ with x- axis as shown. A uniform magnetic field exists parallel to GS in the region outside the electron gun. The minimum magnitude of magnetic field needed to make the electrons hit S is

An electron gun emits electrons of energy 2 keV travelling in positive

1.	An electron gun emits electrons of energy 2 keV travelling in positive x-direction. The electrons are required to hit point S where GS=0.1 m, and the line GS makes an angle of 60∘ with x- axis as shown. A uniform magnetic field exists parallel to GS in the region outside the electron gun. The minimum magnitude of magnetic field needed to make the electrons hit S is
Answer» An electron gun emits electrons of energy $2 keV$ travelling in positive $x-$ direction. The electrons are required to hit point $S$ where $GS = 0.1 m$ , and the line $GS$ makes an angle of $60^{\circ}$ with $x-$ axis as shown. A uniform magnetic field exists parallel to $GS$ in the region outside the electron gun. The minimum magnitude of magnetic field needed to make the electrons hit $S$ is

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