anonymous
  • anonymous
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
Physics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
|dw:1352993062894:dw|
anonymous
  • anonymous
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
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
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.

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anonymous
  • anonymous
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|
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
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.
anonymous
  • anonymous
sorry my mistake but the values will surely be correct
anonymous
  • anonymous
@rahuljain1996 pls how do you arrive at your answers also @Vincent-Lyon.Fr pls the curve you are talking about is for which quetion?
Vincent-Lyon.Fr
  • Vincent-Lyon.Fr
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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