electrostatics;part 1 by vandana mishra
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This PowerPoint presentation discusses electricity and covers several topics: - The discovery of static electricity by Thales of Miletus in 600 BC and the naming of positive and negative charges by Benjamin Franklin. - The historical treatment of electricity and magnetism as separate subjects and the later theory of electromagnetism by Lorentz. - The definitions and key differences between charge, mass, electrostatics, and electrodynamics. - Examples of charging by induction versus contact and the quantization of electric charge on macroscopic versus microscopic scales. - Numerical problems involving calculating total charge on a system and the net charge on a metal sphere after removing electrons. - Recommendations for additional learning resources on electricity including online
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- It then discusses two types of electric charges (positive and negative), and how like charges repel and unlike charges attract based on experiments using a glass rod and rubber rod. Charge is also quantized and conserved.
- Coulomb's law is introduced, which states that the electrical force between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.Elec mag2
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The document discusses the history and properties of electricity and magnetism. It covers how electricity was first observed in amber, the development of theories on positive and negative charges by scientists like Du Fay and Franklin, and how static electricity works. It also explains concepts like conductors, insulators, charging and grounding objects, and Coulomb's law governing the electric force between charges.pa-0000000000000000000000000000000000000.pdf
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pa-0000000000000000000000000000000000000.pdfCbse 12 Class Physics Sample Paper 2010 Model 2
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cbse class 12 physics sample paper 2010 model 2 - http://cbse.edurite.com/cbse-sample-papers-2010.htmlcharge to mass ratio of electrons.pptx #CBSE, #class11, #intermediate,
charge to mass ratio of electrons.pptx #CBSE, #class11, #intermediate,ManjulaVani3
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In this ppt you learn about Charge to mass ratio of electrons and Discovering the fundamental properties of electrons.
why should we learn
Charge to mass ratio of electrons?
This ratio helps us, understand the behavior of electrons in electric and magnetic fields. Which is fundamental to many areas of physics and technology.
This ratio helps us, understand the behavior of electrons in electric and magnetic fields. Which is fundamental to many areas of physics and technology.
When only electric field is applied, the electrons deviate from their path and hit the cathode ray tube at point A.
Similarly when only magnetic field is applied, electron strikes the cathode ray tube at point C. The absence of electric or magnetic filed and they hit the screen at point B. The deflection of particles in CRT mainly depend on three things. they are i) The magnitude of the negative charge on the particle, greater the magnitude of the charge on the particle, greater is the interaction with the electric or magnetic field and the greater is the deflection. ii) The mass of the particle- lighter the particle, greater the deflection. .iii) The strength of the electrical or magnetic field the deflection of electrons from its original path increases with the increase in the voltage across the electrodes, or strength of the magnetic field. e/me = 1.758820x1011 C Kg-1
Me = mass of the electron (9.1 x 10 -31 kg)
e= magnitude of the charge on the electron in coulombs (c) ( 1.6 x 10 -19 C )
Millikan's oil drop experiment, conducted by Robert A. Millikan in 1909, was a pivotal experiment in physics for determining the charge of the electron.
Apparatus: chamber with transparent windows, alight source, an atomizer to prodeuce tiny oil droplets, and 2 metal plates, creating a uniform electric field between them.
Oil Droplets:A Fine mist of oil is sprayed into the chamber using the atomizer. Some of these droplets fall through a small hole in the upper plate, entering the region between the plates.
Observation: The droplets are illuminated by a light source, making them visible through a microscope. Millikan observed these droplets to measure their behavior.
Magnitude of electrical charge q on the droplets is always an integral multiple of the electrical charge e
q = n e
Charge on electron 1.6 x 10 -19 C
Charge to mass ratio of electrons in English https://youtu.be/KK0c31WjmXE #discovery, of #electrons, in telugu (#atomicstructure,) https://youtu.be/Yjk9O_ceYHI
charge to mass ratio in t
Telugu https://youtu.be/H_HZwCryaoQ
Dalton's atomic theory https://studio.youtube.com/video/922QQcaIoD8/edit
how to balance chemical equations https://studio.youtube.com/video/qYV2UKnetAc/edit
the main types of chemical reactions https://studio.youtube.com/video/zpKbiuWvfUE/edit
naming of alkanes https://studio.youtube.com/video/d3fYwsIeyAM/edit
imp questions physical & chemical
#iit, #jee, #cbse, #igcse, #ncert, #emcet, Electrostatiscs Assignment Solution.docx
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The document contains an assignment on electrostatics with questions about drawing electric and magnetic fields, calculating forces on charged particles in electric fields, and explaining charge induction. It also includes discussion questions about charged objects and an explanation of how generators work.
Electrostatics(Elecro-magnetic field)
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1. Electrostatics describes static electricity and the forces between electric charges at rest.
2. Electric charge is a fundamental property that comes in discrete quantities and is conserved, meaning it can be transferred but not created or destroyed.
3. There are several ways charges can be transferred, including through friction, conduction, or induction. Rubbing materials like silk and glass leads to a transfer of electrons that leaves one material positively charged and the other negatively charged.Electric Forces
Electric ForcesPaula Mills
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1. Electrostatic forces are caused by the attraction and repulsion of electric charges, such as when objects are rubbed together.
2. Atoms become charged when they gain or lose electrons, forming ions. The structure of the atom is such that electrons orbit a small, dense nucleus at relatively large distances.
3. Charged objects interact through electric fields and can attract or repel one another depending on whether their charges are opposite or the same. Applications of electrostatic forces include photocopiers, spray painting, and identifying atoms through spectroscopy.Recently uploaded (20)
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Updated About Me. Used for former college assignments.
Make sure to catch our weekly updates. Updates are done Thursday to Fridays or its a holiday/event weekend.
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This profile is older. I started at the beginning of my HQ journey online. It was recommended by AI. AI was very selective but fits my ecourse style. I am media flexible depending on the course platform. More information below.
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LDMMIA Reiki Yoga refers to a specific program of free online workshops focused on integrating Reiki energy healing techniques with yoga practices. These workshops are led by Leslie M. Moore, also known as LDMMIA, and are designed for all levels, from beginners to those seeking to review their practice. The sessions explore various themes like "Matrix," "Alice in Wonderland," and "Goddess," focusing on self-discovery, inner healing, and shifting personal realities.
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electrostatics;part 1 by vandana mishra
- 1. A Power point Presentation By VANDANA MISHRA SCS ,RANCHI 3/31/2020 Kindly press sound icon for voice then click preview from left most top side
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- 4. The credit of discovery of facts goes to Thales of Miletus , Greece , around 600 B.C. The property which differentiates two kinds of charge called polarity of charge. The charges were named as positive and negative by the American scientist Benjamin Franklin. By convention ,the charge on glass rod or cats fur is called positive and that on plastic rod or silk termed negative. 3/31/2020
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- 6. 3/31/2020 In olden days electricity and magnetism treated as separate subjects . Lorentz put forward a theory where they show interdependence of these two subjects. This field is called electromagnetism. ELECTROSTATIC Study of static charge ELECTRODYNAMIC Study of dynamic charge
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- 12. CHARGE Electric charge on a body may be positive negative and zero. It does not depend upon the velocity of body It is quantised and conserved . Force between charges can be attractive and repulsive. MASS Mass of a body is positive quantity Mass of a body increase with its velocity . The quantisation of mass is yet to be established . Mass is not conserved. The gravitational force between two masses is always attractive. 3/31/2020
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- 18. NUMERICAL#1 A Polythene piece rubbed with the wool is found to have a negative charge of 3*10-7C. (i) Estimate the no. of electrons transferred from which to which? (ii) Is there a transfer from wool to polythene? 3/31/2020
- 19. What is the total charge of the system containing five charges +1,+2,-3,+4 and -5in some arbitrary unit? A metal sphere has a charge -6亮C. When 5 *10000000000000 (ten to the power 12)electrons are removed from the sphere ,what would be the net charge on it? 3/31/2020
- 20. 1. Describe some of the differences between charging by induction and charging by concept. 2. (i) Explain the meaning of the statement electric charge of a body is quantised (ii) Why can one ignore quantisation of electric charge when dealing with macroscopic,ie large scale charge? 3/31/2020
- 21. https://swayam.g ov.in/explorer?cat egory=SCHOOL Khan accademy Books Read line by line NCERT. 3/31/2020