Problem $27-84$a:

A very long, straight wire carries a current of $20\mathrm{.}9$ A$.$ An electron outside the wire is $1\mathrm{.}00$ cm from the central axis of the wire and is moving with a speed of $5\mathrm{.}06{10}^6\frac{m}{s}.$ Find the force on the electron when it moves directly away from the wire. into the page

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Problem $27-84$b:

Find the force on the electron when it moves parallel to the wire in the direction of the current.

$q,$ toward the right

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Problem $27-84$c:

Find the force or the electron when it moves perpendicular to the central axis of the wire and tangent to a circle that is coaxial with the wire.

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