A charge q moving along the X-axis with a velocity `vecv` is subjected to a uniform magnetic field B acting along the Z-axis as it crosses the origin O. Figure. (i) Trace its trajectory . (ii) Does the charge gain kinetic energy as it enters the magnetic field? Justify yous answer.

A charge q moving along the X-axis with a velocity `vecv` is subjected

1.	A charge q moving along the X-axis with a velocity `vecv` is subjected to a uniform magnetic field B acting along the Z-axis as it crosses the origin O. Figure. (i) Trace its trajectory . (ii) Does the charge gain kinetic energy as it enters the magnetic field? Justify yous answer.
Answer» (i) The trajectory of charge q will be a circle in Y-Z plane as shown in figure. (ii) The speed and kinetic energy of the charged particle remain constant, but velocity of the charged particle changes in direction.

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A charge q moving along the X-axis with a velocity `vecv` is subjected to a uniform magnetic field B acting along the Z-axis as it crosses the origin O. Figure. (i) Trace its trajectory . (ii) Does the charge gain kinetic energy as it enters the magnetic field? Justify yous answer.

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