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A simple electric circuit, where current is represented by the letter i. The relationship among the voltage (V), resistance (R), and current (I) is V=IR; this is called as Ohm''s Law.An electric current is a flow of electric charge by an electrical conductor. Electric charge flows when there is voltage present across a conductor.In electric circuits this charge is often carried by moving electrons in a wire. It can also be carried by ions in an electrolyte, or by both ions and electrons like as in a plasma.The SI unit for measuring an electric current is the ampere, which is the flow of electric charges by a surface at the rate of one coulomb per second. Electric current can be measured by using an ammeter.Electric currents cause many effects, notably heating, but also induce magnetic fields, which are widely used for inductors, motors, and generators.
When the wavelength of wave remains unchanged, the scattering is known as elastic.
conservation laws A law that states that, in a closed system, the whole quantity of something will not enhance or reduce, but exactly remain the same; i.e., its rate of altera
Two charges eachof q=+2 micro coloumb are placed at the vertices Q and R of the triangle .the sum of sides PQ and PR is 12cm and their product is 32 cm_2 .the potential at point P
functions of the time base on the C.R.O
I just really don''t get the homework
Ehrenfest paradox (Ehernfest, 1909) The special relativistic "paradox" including a quickly rotating disc. As any radial segment of the disc is perpendicular to the direction o
Equatorial Line and Neutral point: Equatorial Line: The imaginary line joining the centre of mass and perpendicular to the line joining the poles of a bar magnet is called th
Fibre optics: Light travels in straight lines, even though lenses and mirrors can deflect it, light still travels in a straight line between optical devices. This is fine for
Write three special characteristics of the light source used in optical communication. Name any one optical detector. Define the meaning of the term 'sensitivity' and 'responsively
How fast would the train be travelling when it in Lac-Mégantic derailed. There were 5 locomotives and 72 cars filled with 113,000 litres of crude oil. The elevation was 520 m Cote
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