cathode ray is positively charged or negativley
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cathode ray is negetively charged
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hope this helps
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have a nice day
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mittalsrc:
thats right thanks
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Hey friend here is your answer.....
Answer :
Cathode rays are negatively charged particles.
Cathode Rays :
A discharge tube is a long glass tube at the two ends of which are sealed two metal plates . These ways can be connected to a high voltage source and are called electrodes . The electrode connected to the negative terminal of the source is called the cathode , and the one connected to the positive terminal is called the anode . There is also a side tube which can be connected to one exhaust pump, used for lowering the pressure of the gas inside the discharge tube.
When I voltage is applied across the terminals, and the pressure inside the tube is 0.01-0.001mm of mercury, the end of the tube opposite the cathode starts glowing . This phenomenon is called fluorescence . Investigations have shown that sum in visible rays, starting from the cathode , fall on the opposite word of the tube, causing fluorescence . These rays were named cathode rays .
The characteristics of cathode rays :
Sir J J Thomson and others found that cathode rays have the following characteristics.
1. They originate at the cathode and travel in straight lines.
" When an object is placed in the path of cathode rays, a shadow of the object falls on the wall opposite of the cathode . A Shadow can be formed only when the rays travel in straight lines ".
2. Cathode rays are a stream of particles.
" A light paddle wheel, placed in the path of the cathode rays, rotates . This shows that some particles strike the plates of the wheel ".
3. The particles constituting cathode rays are negatively charged.
" This is provided by the fact that the cathode rays bend towards the positive plate in an electric field ".
4. The particles constituting cathode rays are all alike . They do not change with the gas, the electrodes and the kind of glass used for making the tube .
" Thus , Sir J J Thomson concluded that the particles constituting cathode rays for a Universal constituent of all atoms . These particles where named electrons in 1897 .
Hope it helps you.....
Answer :
Cathode rays are negatively charged particles.
Cathode Rays :
A discharge tube is a long glass tube at the two ends of which are sealed two metal plates . These ways can be connected to a high voltage source and are called electrodes . The electrode connected to the negative terminal of the source is called the cathode , and the one connected to the positive terminal is called the anode . There is also a side tube which can be connected to one exhaust pump, used for lowering the pressure of the gas inside the discharge tube.
When I voltage is applied across the terminals, and the pressure inside the tube is 0.01-0.001mm of mercury, the end of the tube opposite the cathode starts glowing . This phenomenon is called fluorescence . Investigations have shown that sum in visible rays, starting from the cathode , fall on the opposite word of the tube, causing fluorescence . These rays were named cathode rays .
The characteristics of cathode rays :
Sir J J Thomson and others found that cathode rays have the following characteristics.
1. They originate at the cathode and travel in straight lines.
" When an object is placed in the path of cathode rays, a shadow of the object falls on the wall opposite of the cathode . A Shadow can be formed only when the rays travel in straight lines ".
2. Cathode rays are a stream of particles.
" A light paddle wheel, placed in the path of the cathode rays, rotates . This shows that some particles strike the plates of the wheel ".
3. The particles constituting cathode rays are negatively charged.
" This is provided by the fact that the cathode rays bend towards the positive plate in an electric field ".
4. The particles constituting cathode rays are all alike . They do not change with the gas, the electrodes and the kind of glass used for making the tube .
" Thus , Sir J J Thomson concluded that the particles constituting cathode rays for a Universal constituent of all atoms . These particles where named electrons in 1897 .
Hope it helps you.....
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