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Cathode rays, discovered by Sir Willium Crooke are the stream of electrons. They may be given by using a discharge tube containing gas at a low pressure of the order of 10-2 mm of Hg. At that pressure the gas particles ionize and the emitted electrons travel in the direction of positive potential of anode. The positive ions touch the cathode to make emission of electrons from cathode. These electrons also go in the direction of anode. Therefore the cathode waves in the discharge tube are the electrons given because of ionization of gas and that emitted by cathode because of collision of positive ions.
project on logic gates
difference between like and unlike forces
When the current in the primary coil of 400 turns of a magnetic circuit, enhances linearly from10mA to 35mA in 100ms, an e.m.f. of 75mV is induced into the secondary coil of 240 tu
give the theory of concave grating and Rowland mounting
A monochromatic parallel beam of light is incident on a single slit. Graphically show the intensity distribution among the secondary maxima and principle maxima in diffracted beam.
Determine the change in entropy, in joules, when 5 moles of an ideal gas expands from a value of 4 lits. to 40 lits. at 27°C. (R = 8.314 JK -1 mol -1 )
Explain the Lenz Law An induced current always flows in a direction so that its electromagnetic field opposes the change in magnetic flux producing it. This is embodied in the
Water jet machining is an advanced method for cutting plates using a high-velocity water jet mixed with abrasive powder. The jet comes out of a nozzle A of diameter d and follows t
What is the path of the magnetic field at a point due east of a straight wire carrying a current due north?
Is CPH a quantum energy unchangeable? Answer- Yes, the quantum energy (photon) is made of lots CPH, different between photons depend to the number of CPH that they are made of.
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