A coulomb is a measure of what whereas an ampere is a measure of what?
Is a coulomb a measure of quantity whereas an ampere is a measure of rate? Answer The coulomb is the SI derived unit for electric charge. The ampere is the SI base unit for electric current. The coulomb is defined in terms of the ampere and the second. The ampere is defined in terms of the newton and the metre. ...
A coulomb is a measure of where as an ampere is a measure of?
A coulomb is a measure of electrical charge, specifically that one coulomb is approximately 6.24 x 1018 protons or (negatively) electrons. An ampere, on the other hand, is a measure of electrical flow, in coulombs per second. Comment The ampere is actually defined in terms of the newton and the metre, not the coulomb and the second. ...
Asked in Physics
How you define 1 ampere unit of current?
The official definition is currently that one ampere is "the constant current that will produce an attractive force of 2 Ã— 10-7 newton per metre of length between two straight, parallel conductors of infinite length and negligible circular cross section placed one metre apart in a vacuum". The coulomb (unit of charge) is derived from the ampere. To visualize electrical current, it is more convenient to think of it the other way - the coulomb is a certain number of charged particles (electrons,...
Asked in Math and Arithmetic, Units of Measure, Physics
How can you define temperature in terms of mass and length and time?
All units can be decomposed into the fundamental units of mass, length, and time. Some would also add the fundamental unit of charge, which used to be the coulomb but is now, I think, the ampere1. For example, the watt is a joule per second; the joule is a newton-meter; the newton is a kilogram-meter squared per second squared2. You will have to do a similar decomposition of a Kelvin (or a degree Celsius or Fahrenheit). 1. The ampere was once defined as...
Asked in Physics
How can you find the force acting on a charge of x coulombs in an electric field of y micro coulomb?
First we must know where the charge x coulomb has been placed. Without that data we cannot find the required. Field due to y micro coulomb at a point distance r will be 9x109 y / r2 micro newton So the force on x coulomb kept at that point will be 9x109 xy / r2 micro newton ...
Asked in Speed of Light
What does the speed of light depend on as it passes through a substance?
Whatever light is traveling through, whether vacuum or some material medium, its speed depends on the electrical characteristics of that environment, specifically its electrostatic permittivity and magnetic permeability. Those are measurable properties of empty space and of any substance. The speed of light through it is the reciprocal of the square root of the product of those quantities. Which shouldn't be too surprising, since we know now that light and other electromagnetic waves consist of traveling electrostatic and magnetic fields. Try it for yourself. The electrostatic permittivity of free space...
Asked in Physics
What is the dimensional formula of R in the relation V equals IR?
This is not entirely straightforward. Voltage and Resistance are both forces and thus have the dimensions:- Mass x Length / Time squared i.e. MLT -2 Electric current (in Amperes) is the number of electric charges (in Coulombs) passing a point in a unit time and so ought to have the dimensions:- 1 (unit) / Time i.e. T -1 Writing out the equation V = IR using these dimensions gives:- MLT -2 = MLT -3 which is unbalanced. The missing part is the time taken for...
What you mean by power station producing energy in watt?
Energy is measured in joules. One joule is the amount of work necessary in applying a force of one newton through a distance of one meter. It is also the energy required to pass an electric current of one ampere through a resistance of one ohm for one second. It is also the energy required to move a charge of one coulomb through a potential difference of one volt. The rate of energy delivery or consumption is measured in watts. One watt...
Asked in Physics, Units of Measure
What fundamental quantities constitute 1 ampere of electric current?
The ampere is an SI base unit and is not defined in terms of charge and time at the moment. There is a proposal that has been put forward (2005), though still not ratified (2014) that would indeed define an ampere in terms of charge and time. Since the second is a fundamental unit and an electron a fundamental particle it is proposed to define an ampere as the rate of flow of fundamental charges. It is equivalent to 1 coulomb...
Asked in Physics, Chemistry, Electrostatics
A 5 Coulomb charge is placed at a distance of 4 meters from a 3 Coulomb charge What is the force?
Since, F = 9 x 109 q1q2/r2 Then , substituting the value of q1 , q2 and r2 ,we get ,F = 5 x 3 /42 = 0.9375 Newton ...
Asked in Physics, Chemistry, Electrical Engineering
What is the unit of difference in potential between two charges?
The unit of potential difference in a circuit is the volt. Electrical charge is measured in coulombs (1 coulomb = 6.241x1018 e, electron charges) and a volt is equal to 1 newton per coulomb at a distance of 1 meter. ...