An electron with a speed u along the positive x-axis at y = 0 enters a region of uniform magnetic field B= -B_o k which exists to the right of y-axis. [Fig.] The electron exists from the region after some
time with the speed v at ordinate y, then

Question

An electron with a speed u along the positive x-axis at y = 0 enters a region of uniform magnetic field B= -B_o k which exists to the right of y-axis. [Fig.] The electron exists from the region after some

time with the speed v at ordinate y, then

Infinity Learn · Accepted Answer

The energy of a charged particle moving in magnetic field remains constant because the magnetic field does not do any work. Therefore, kinetic energy is constant, i.e.U $$=$$ V Lorentz force, $$F=$$ $$q(v$$ x $$B)$$ The force on electron will act along $$-$$ ve $$y-axis$$ initially .The electron will undergo circular motion in clockwise direction and emerge out the field. So, y < $$0$$.

An electron with a speed u along the positive x-axis at y = 0 enters a region of uniform magnetic field B= -B_o k which exists to the right of y-axis. [Fig.] The electron exists from the region after some
time with the speed v at ordinate y, then

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An electron with a speed u along the positive x-axis at y = 0 enters a region of uniform magnetic field B= -Bo k which exists to the right of y-axis. [Fig.] The electron exists from the region after sometime with the speed v at ordinate y, then

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material

An electron with a speed u along the positive x-axis at y = 0 enters a region of uniform magnetic field B= -B_o k which exists to the right of y-axis. [Fig.] The electron exists from the region after some
time with the speed v at ordinate y, then