A proton is projected with a uniform velocity $v$ along the axis of a current-carrying solenoid. Then

Question

A proton is projected with a uniform velocity $v$ along the axis of a current-carrying solenoid. Then –

The proton will be accelerated along the axis.

The proton's path will be circular about the axis.

The proton moves along a helical path.

The proton will continue to move with velocity $v$ along the axis.

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