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An electron in a television tube moves with a speed of 6.30 ✕ 107 m/s, in...

An electron in a television tube moves with a speed of 6.30 ✕ 107 m/s, in a direction perpendicular to the Earth's field, which has a strength of 5.00 ✕ 10−5 T.

(a)

What strength electric field (in kilovolts per meter) must be applied perpendicular to the Earth's field to make the electron move in a straight line?

  kV/m

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