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woleraymond

  • 3 years ago

An electron is moving horizontally to the right at a speed or 4 x 10^6ms^-1. It enters a region of length 20cm in which there is an electic field of 1 x 10^3NC^-1 pointing downward as shown in diagram below 1. How long does it spend travelling from A to B 2. By how much and in what direction is the electron deflected, when it leaves the electric field? Describe the motionof the particle in the electric field and draw a rough sketch on the path 3. What is the magnitude of the vertical component of the velocity of the electron, when it leaves the electric field

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  1. woleraymond
    • 3 years ago
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    |dw:1352993062894:dw|

  2. woleraymond
    • 3 years ago
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    4. What is the speed of the electron when it leaves the electric field. 5 Through what angle has the electron been deflected when it leaves the electric field 6. Describe and draw the rough sketch of its subsequent motion

  3. Vincent-Lyon.Fr
    • 3 years ago
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    Acceleration in constant because the electric field is constant. The motion will be similar to that of a projectile but the parabola will curve upwards.

  4. rahuljain1996
    • 3 years ago
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    1.)~5*10^-8 sec. 2.)the electron is deflected in the south direction finally it makes an angle of \[\tan^{-1} 2\] with the horizontal x axis the motion is a non standard parabola opening towards the negative x axis|dw:1353400043578:dw| 3.)perpendicular component of velocity is 8*10^6m/s 4.)the speed is ~9*10^6 m/s 5.)\[\tan^{-1} 2\] 6.)parabola|dw:1353400247551:dw|

  5. Vincent-Lyon.Fr
    • 3 years ago
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    I have not checked the values given by rahuljain1996, but the parabola looks like this:|dw:1353403286137:dw| Remember electrons have a negative charge, and the force on them Fe is opposed to the direction of the electric field.

  6. rahuljain1996
    • 3 years ago
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    sorry my mistake but the values will surely be correct

  7. woleraymond
    • 3 years ago
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    @rahuljain1996 pls how do you arrive at your answers also @Vincent-Lyon.Fr pls the curve you are talking about is for which quetion?

  8. Vincent-Lyon.Fr
    • 3 years ago
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    This answers the part "Describe the motionof the particle in the electric field and draw a rough sketch on the path" Motion of electron is parabolic between the plates, then linear afterwards.

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