## Describe positive rays, Physics

Assignment Help:

Positive rays are sometimes called as the canal waves. These were found by Goldstein. If the cathode of a discharged tube has holes in it and the pressure of the gas is around 10-3 mm of Hg then faint luminous glow comes out from every hole on the backside of the cathode. It is supposed positive pulses which are rolling out from the holes. Origin of positive rays: When potential dissimilarity is applied across the electrodes, electrons are gone from the cathode. As they move in the direction of anode, they gain power. These energetic electrons when hit with the atoms of the gas in the discharge tube, they ionize the atoms. The positive ions so formed at several places between cathode and anode travel towards the cathode. As during their motion, the positive ions when arrives the cathode, some pass by the holes in the cathode. These branches are the positive pulses.

#### Thevenin theorem, what is thevenin theorem

what is thevenin theorem

#### Determine the volume flow rate, Water flows from a large tank through a lar...

Water flows from a large tank through a large pipe that splits into two smaller pipes as shown in Figure. If viscous effects are negligible (no head loss), determine the volume flo

#### Which of the two objects will start to slide first, Two objects are placed ...

Two objects are placed on a flat turntable at 10.0 cm and 20.0 cm from the center, respectively. The coefficient of static friction with the turntable is 0.50. The turntable's

#### Motion in one dimension, a freely falling object near the Earth''s surface ...

a freely falling object near the Earth''s surface has constant?

#### Electrostatics, Can the whole charge of a body is transfer to another body

Can the whole charge of a body is transfer to another body

#### Finding the displacement and time, A car of mass 1600 kilograms (kg) was tr...

A car of mass 1600 kilograms (kg) was travelling at 30m/s when the brakes were applied and produced a constant retarding force of 8000 N (Newtons) to the car: Find - a) How far the

#### Determine the charge of the lithium ion, Determine the Charge of the lithiu...

Determine the Charge of the lithium ion A mass spectrometer often is used in carbon dating to verify the ratio of C-14 isotopes to C-12 isotopes in a biological sample. This ra

#### Explain density, Q. Explain density? Answer:- Density is a physica...

Q. Explain density? Answer:- Density is a physical characteristic also is a measure of mass per unit of volume of a material or substance. It is a dimension of the amount

#### State kirchoffs first law in electricity, Q State Kirchoff's first law in e...

Q State Kirchoff's first law in electricity? Kirchoff's first law (current law) the algebraic total of the currents meeting at any junction in a circuit is zero. This law

#### Explain kirchoff''s voltage law, Kirchoff's Voltage Law determines that th...

Kirchoff's Voltage Law determines that the algebraic sum of the products of currents and resistances in every of the conductors in any closed path in a network plus the algebraic  