Home » What Will Happen When A Magnetic Field Is Applied On A Cathode Ray Tube? All Answers

# What Will Happen When A Magnetic Field Is Applied On A Cathode Ray Tube? All Answers

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When only electric field is applied, the electrons deviate from their path and hit the cathode ray tube at point A. Similarly when only magnetic field is applied , the electron strikes the cathode ray tube at point C.When an external electric field is applied, the cathode ray is deflected toward the positive pole. When a magnetic field is applied, the cathode ray is deflected from its normal straight path into a curved path.Cathode rays are deflected by a magnetic field. The rays are deflected away from a negatively charged electrical field and toward a positively charge field.

## What happens when magnetic field is applied to cathode ray?

When an external electric field is applied, the cathode ray is deflected toward the positive pole. When a magnetic field is applied, the cathode ray is deflected from its normal straight path into a curved path.

## Are cathode rays affected by A magnetic field?

Cathode rays are deflected by a magnetic field. The rays are deflected away from a negatively charged electrical field and toward a positively charge field.

### Magnetic Force on a Particle Demo: Cathode Ray Tube

Magnetic Force on a Particle Demo: Cathode Ray Tube
Magnetic Force on a Particle Demo: Cathode Ray Tube

## Why are cathode rays deflected by magnetic field?

Cathode rays are deflected by a magnetic field

If the rays are a stream of negative electrons moving from left to right they are equivalent to a positive or conventional electric current in the reverse direction.

## What will happen when A magnetic field is applied on A cathode ray tube Class 9?

Now he applied a magnetic field across the cathode ray tube by using an external magnetic field. The cathode ray is deflected by the magnetic field. Now he changed the direction of the external magnetic field and found that the beam of electrons is deflected in the opposite direction.

## What happened to cathode ray when magnetic and electric field are applied successfully?

Cathode rays are moving along the positive Z-axis.An electric field is applied along positive Y-axis. In the same region, a magnetic field is also applied. The cathode rays pass undeviated in this region.

## What happens to cathode rays in the absence of magnetic or electric fields?

In the absence of magnetic or electric fields, cathode rays travel in straight lines. However, magnetic and electric fields “bend” the rays in the manner expected for negatively charged particles. Moreover, a metal plate exposed to cathode rays acquired a negative charge.

## How does electromagnetic deflection work in a cathode ray tube?

The electrons in the cathode rays would deflect toward the positively charged plates, and away from the negatively charged plates.

## See some more details on the topic What Will Happen When A Magnetic Field Is Applied On A Cathode Ray Tube? here:

### Electromagnetic Deflection in a Cathode Ray Tube, I – MagLab

That rule describes how a charged particle (our electron) moving in a magnetic field will be deflected by that field at a right angle to both …

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### Cathode ray tube | University of Oxford Department of Physics

The ideal CRT is enclosed by Helmholtz coils to allow a varying magnetic field to be applied. In the absence of Helmholtz coils, a strong neodymium magnet …

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### What is the effect of electric and magnetic field on cathode rays?

Cathode rays consist of a stream of electrons which are negatively charged so they bend towards the positive plate in an electric field.

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### The Right-Hand Rule for Magnetic Force | Science project

When you bring the magnet close to the cathode ray tube, the magnetic fields will interact with each other and the electron beam will bend.

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## What is the Behaviour of cathode rays in presence of electric and magnetic field?

(iv) In the presence of electrical or magnetic field, the behaviour of cathode rays are similar to that expected from negatively charged particles, suggesting that the cathode rays consist of negatively charged particles, called electrons.

### Magnetic Forces and Magnetic Fields

Magnetic Forces and Magnetic Fields
Magnetic Forces and Magnetic Fields

## How will the magnetic field affect the electron beams?

The magnetic field has a strong impact on the un-trapped electrons by reducing their diffusion to the tube wall. In the absence of a magnetic field the tail of the EEDF would be depleted due to diffusion (figure 5(a)).

## Which rays will deflect towards the cathode?

The electrons in the cathode rays would deflect toward the positively charged plates, and away from the negatively charged plates.

## Why do cathode rays deflect toward a positively charged metal plate?

Cathode rays also get deflected when these are subjected to a strong magnetic field. The electrons in the cathode rays would deflect toward the positively charged plates, and away from the negatively charged plates.

## Is magnetic electric field effective on CRT?

Why were cathode rays deflected by a magnetic field? Cathode rays are basically beam of electrons. So cathode rays (electrons in motion) in magnetic field are deflected because of the Lorentz force that acts on them.

## Which Ray get deflected in a magnetic field?

Alpha rays (heavy, positively charged particles) are deflected slightly in one direction. Beta rays (light, negatively charged electrons) are deflected strongly in the opposite direction. Electromagnetic gamma rays are not deflected.

## Are cathode rays deflected by electric field?

Cathode rays are beam of electrons, thus they are negatively charged. Hence on applying electric field, they get deflected towards the positive plate. Thus correct answer is option A.

### The effect of magnetic field on cathode ray tube

The effect of magnetic field on cathode ray tube
The effect of magnetic field on cathode ray tube

## What happened to the cathode ray in the presence of an external electric field?

The cathode ray is deflected away from the negatively-charged electric plate, and towards the positively-charged electric plate. The amount by which the ray was deflected by a magnetic field helped Thomson determine the mass-to-charge ratio of the particles.

## How does magnetic field deflect electron beam?

Deflection of electron due to magnetic field

The force on an electron moving with speed v in external magnetic field is given by q(v XB ), where q is the charge of the electron and B be the magnetic field. Hence the force will be perpendicular to the velocity and magnetic field.

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