charged particles electron

An electron is found to carry 1.6 x 10 -19 coulomb of negative charge. This is the smallest negative charge known to be carried by any particle, and is consequently taken as the unit negative charge. The relative charge of a electronh..

The e/m ratio of the anode rays obtained from hydrogen gas was found to be highest and equivalent to 9.58 x 10 4 C g - 1 . These particles carried a charge of 1.602 x 10 - 1 9 C. Thus, the mass of the positive particle from hydrogen gas is,..

The proton is equal and opposite to the charge of an electron. So the absolute charge of a proton is 1.6 x 10 - 1 9 coulomb of positive charge. This being the smallest positive charge carried by any particle, it is taken as 1 unit posi..

Although Dalton's theory of the existence of atoms was published in 1808, there was no clear idea of what an atom might look like until the early part of the twentieth centur..

Small drops of oil formed by a sprayer are allowed to fall in between a positively charged upper metal plate and a negatively charged lower metal plate. The space between the two plates is irradiated with X-rays. This displaces some electrons of the air molecules, whi..

They get deflected by electric and magnetic fields. The deflection is large since a beta particle is lighter than an a -particle. They affect photographic plates. They ionise the gas through which they pass. The mass is 9.1 x 10 - 3 1 kg and its charge i..

Production of cathode rays - In 1885, Sir William Crookes carried out a series of investigations into the behaviour of metals heated in a vacuum. The experiment of Crookes and others showed that a heated cathode produced a stream of radiation, which could cause gases at low pressure to glow and whi..

Characteristics of Electrons, Protons and Neutrons - Particle Electron Proton Neutron Symbol e p n Nature Negatively charged Positively charged Neutral Relative charge -1 +1 0 Absolute charge 1.6 x 10 -19 C 1.6 x 10 -19 C 0 Relat..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Direction of a magneti..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Direction of a magneti..