Charged Particles by https://padlet.com/mike1teac/bfay35926o1bhj8f Assessment Unit 3A en-us 2020-10-29 03:51:08 UTC 2022-01-18 04:42:02 UTC hello@padlet.com https://padlet.net/icons/png/1f329.png Millikan's experiment https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997041680 There are two parallel metal plates. There is an atomizer that is used to create drops of oil which will help to show the quantization of charge. Firstly oil particles is dropped and move from the little hole on the first plate]]> 2022-01-18 04:33:58 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997041680 Millikan's experiment https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997043311 A closed chamber with transparent sides is fitted with two parallel metal plates, which acquire a positive or negative charge when an electric current is applied. ]]> 2022-01-18 04:35:20 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997043311 Milikans' experiment https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997045102 In the transparent cillindrical construction there are two plates

]]> 2022-01-18 04:36:57 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997045102 https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997045961 At the start of the experiment, an atomizer sprays a fine mist of oil droplets into the upper portion of the chamber.]]> 2022-01-18 04:37:42 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997045961 https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997046225 When the space between the metal plates is ionized by radiation (e.g., X-rays), electrons from the air attach themselves to the falling oil droplets, causing them to acquire a negative charge.]]> 2022-01-18 04:37:58 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997046225 https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997046426 There because of the effect ionizing(X rays) particles are charged negatively or positively, and it causes either gaining or losing electrons. With the help of microscope the velocity of oil drop can be determined if it is help stationary ]]> 2022-01-18 04:38:09 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997046426 The oil drop experiment was performed by Robert A. Millikan and Harvey Fletcher in 1909 to measure the elementary electric charge (the charge of the electron). The experiment took place in the Ryerson Physical Laboratory at the University of Chicago. Millikan received the Nobel Prize in Physics in 1923. The experiment entailed observing tiny electrically charged droplets of oil located between two parallel metal surfaces, forming the plates of a capacitor. https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997047596 2022-01-18 04:39:11 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997047596 https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997050414 Under the influence of gravity and air resistance, some of the oil droplets fall through a small hole cut in the top metal plate. When the space between the metal plates is ionized by radiation (e.g., X-rays), electrons from the air attach themselves to the falling oil droplets, causing them to acquire a negative charge. A light source, set at right angles to a viewing microscope, illuminates the oil droplets and makes them appear as bright stars while they fall. The mass of a single charged droplet can be calculated by observing how fast it falls. By adjusting the potential difference, or voltage, between the metal plates, the speed of the droplet’s motion can be increased or decreased; when the amount of upward electric force equals the known downward gravitational force, the charged droplet remains stationary. ]]> 2022-01-18 04:41:38 UTC https://padlet.com/mike1teac/bfay35926o1bhj8f/wish/1997050414