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A cathode ray is nothing but a stream of negatively charged electrons. If electrons are moving through an electric or a magnetic field, they will be deflected.

In the case of an electric field, the cathode ray would be deflected toward a positive plate and/or away from a negative plate. This follows the fundamental principle of electrostatics wherein opposite charges attract and like charges repel. In the case of a magnetic field, we have to apply Fleming's left hand rule to know about the direction of deflection of cathode ray. Note that the electrons must move across the magnetic lines of force, and not along them for the field to act on the moving charges and deflect them.

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13y ago
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14y ago

Depending on where it is placed, the electrons willl either move up or down.

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11y ago

GAY!! They behave GAY like you now do your worksheet for Mr. Sulits

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9y ago

It would be distorted or bent by the magnetic field.

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Q: What is the effect of electric field on cathode rays?
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Related questions

What did Thomson conclude about the particles in cathode rays?

they are deflected toward positive terminal in an electric field


What did Thomson conclude about the particles in cathode?

The immaterial nature and the aetherial hypothesis of cathode rays were proved wrong by J. J. Thomson. He concluded that the rays were comprised of particles. His entire works can be divided into three different experiments. In the first, the magnetic effect on cathode rays was studied while in the second, the rays were deflected by an electric field.


Are cathode rays deflected toward a negatively charged plate in an electric field?

Yes. Cathode rays, otherwise known as electrons, are repelled by a negative charge, and attracted to a positive charge.


What are cathode rays made from?

Cathode rays are a stream of electrons originating from cathode and moving to an anode, when high voltage electric potential is applied to the electrodes sealed in a glass tube containing gas at low pressure.Cathode rays are stream of negativley charged electrons getting detached right from neutral molecues due to high voltage and driven right from cathode to anode.


Why cathode rays are negatively charged?

Cathode rays are produced when the metal cathode has a high voltage applied to it - this has the effect of "boiling" the electrons off the cathode's surface producing cathode rays, and so cathode rays can be seen as a stream of electrons i.e. negatively charged particles.AnswerElectrons are released from the surface of a cathode through thermionic emission. This is achieved by a heaterlocated at the cathode, and not due to a high voltage. The function of the high voltage (between the cathode and an anode placed closer to the screen) is to attract these electrons towards the screen of the CRT. So a 'cathode ray' is simply a beam of electrons which, of course, are negatively charged.


How magnetic field is related with cathode rays in physics?

When a magnetic field is applied to a cathode ray, the cathode ray is deflected.


What would happen to cathode rays in a vacuum?

Cathode rays in a vacuum would travel until stopped (or deflected by an electromagnetic field).


What evidence convinced Thomson that cathode rays consist of negatively charged particles?

In a series of experiments in the 1890's, J.J.Thompson showed that cathode rays, or electrons, are deflected by an electric field, they are bent by a magnetic field, and that their charge to mass ratio is about 1/2000th of that of the proton. Light does not have any of these properties.


What experiment did jj Thompson do?

J. J. Thomson observed that cathod rays are deflected by an electric field - and from this discovered the electron.


How are cathode rays originated?

its negatively charged particles of matter,Thomson knew that opposites attract but these the positive charged anode,so he reasoned that the paticles must be negatively charged! : )! Wooooo! Go J.J Thomson


Is electric field can deflect y-rays?

As gamma rays are neutral it cannot be deflected by electric field.


Is gamma radiation stopped by an electric field?

No, gamma rays are not stopped by an electric field.