Charging of Insulators
Since charge cannot flow through insulators, neither conduction nor induction can be used to charge, insulators, so in order to charge an insulator friction is used. Whenever an insulator is rubbed against a body exchange of electrons takes place between the two. This results in appearance of equal and opposite charges on the insulator and the other body. Thus the insulator is charged.
For example rubbing of plastic with fur, silk with glass causes charging of these things.
-
Reynolds Number
Last modified on:3 years agoReading Time:10MinutesWhat is Reynolds Number? The Reynolds number (Re) is a dimensionless parameter used in fluid mechanics to characterize the flow of a fluid (liquid or gas) around an object or through a conduit. It relates the inertial forces to the viscous forces in the fluid and helps determine the type of…
-
Physics Formulas Related to Mechanics
Last modified on:3 years agoReading Time:7MinutesPhysics Formulas Related to Mechanics Here we are providing physics formulas related to mechanics. All important mechanics formulas are covered in this article. Students are suggested to remember all formulas in order to grasp physics concepts well. 1. Newton’s Second Law: \( F = m \cdot a \) 2. Work-Energy Theorem:…
-
Physics Formulas Related to Electricity and Magnetism
Last modified on:3 years agoReading Time:4MinutesPhysics Formulas Related to Electricity and Magnetism Here we are providing physics formulas related to Electricity and Magnetism. Important electricity and magnetism formulas are covered in this article. Students are suggested to remember all formulas in order to grasp physics concepts well. 1. Coulomb’s Law: \[ F = \frac{k \cdot |q_1…
-
Physics Formulas Related to Optics
Last modified on:3 years agoReading Time:6MinutesPhysics Formulas Related to Optics Here we are providing providing physics formulas related to Optics. All important formulas related to Optics branch of Physics are covered in this article. Students are suggested to remember all formulas in order to grasp physics concepts well. 1. Snell’s Law (Refraction): \[ n_1 \sin(\theta_1) =…
-
Physics Formulas Related to Heat and Thermodynamics
Last modified on:3 years agoReading Time:7Minutes Physics Formulas Related to Heat and Thermodynamics Here we are providing providing physics formulas related to Heat and Thermodynamics. All important formulas related to Heat and Thermodynamics branch of Physics are covered in this article. Students are suggested to remember all formulas in order to grasp physics concepts well. 1.…
-
Physics Formulas Related to Fluid Mechanics
Last modified on:3 years agoReading Time:4MinutesPhysics Formulas Related to Fluid Mechanics Here we are providing providing physics formulas related to Fluid Mechanics. All important formulas related to fluid mechanics branch are covered in this article. Students are suggested to remember all formulas in order to grasp physics concepts well. 1. Density: \[ \rho = \frac{m}{V} \]…
