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coulomb is the unit of charge and ampere is unit of current
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∙ 12y ago
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What is dimensions of coulomb?
Current is rate of flow of charge, so 1 ampere = 1 coulomb per second. As ampere and seconds are both fundamental units (and coulomb is derived), a coulomb has the dimensions [current][time] i.e. As
What is the measure of coulomb?
The coulomb is an SI derived unit used to measure electric charge. It is a special name given to an 'ampere second', which are both SI base units.
1 coulomb is rqual to what?
Coulomb is the basic unit of charge in the MKS system. It is the charge which flows per second in a DC current of 1 ampere, about 6*10^18 electrons. Batteries and capacitors both store charge. They also both store energy. Charge and energy are not equivalent, but are related somewhat like momentum and kinetic energy.
What derived units?
derived units come from basic units such as length, time, electrical current.AnswerIn SI, Derived Units are any units that are not Base Units. There are seven Base Units, from which all Derived Units are formed. For example, a coulomb (derived unit) is equal to an ampere second (both Base Units).
What are units are part of both us and metric systems?
For example, seconds. Also, many of the more "technical" units, that are used in science and technology, but not so much in the daily life of a common person - for example, ampere, coulomb, henry, watt, ohm, tesla, etc.
How do you convert picosiemens to ions per second?
I don't think you can convert that, since the units are unrelated. Siemens is a measure of conductance; ions per second is closely related to the electric current.As Hilmarz said, picosiemens to ions/second is nonconvertible. Additionally, picosieverts to ions/second is also nonconvertible since a sievert is a unit for dose equivalent and depends on several biological variables, which aren't reflected in the unit, "ions/second."Now, as for the unit, "ions/second," itself, I feel that there are two possibilities as to what that means:1) You're referring to an ampere, which is a coulomb/sec, coulomb being a unit of electrical charge. In certain materials, ions, as opposed to simply electrons, can be charge carriers, so I can potentially see someone referring to an ampere as an ion/sec. If this is actually what you meant, then the applicable conversion is: siemen = ampere/volt, or ion/(volt*sec) I suppose, and a picosiemen is just 10-12 siemens.2) However, and this is a stretch, but the question wasplaced in the nuclear physics category after all, picocuriesto disintegrations/sec (a Becquerel), which are both perfectly valid units for radioactivity, have the simple conversion of one 1 picocurie = .037 disintegrations/sec.
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 -2Electric 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 -1Writing out the equation V = IR using these dimensions gives:-MLT -2 = MLT -3which is unbalanced. The missing part is the time taken for the current to flow - there is no instantaneous current as such and time is required. While using the equation V = IR gives results that are numerically correct, the dimensional equation only makes sense when the current is considered as dimensionless, so that a current is always "charges per unit time multiplied by time taken" and thus having the dimensions:-1 (unit) x Time / Time i.e. dimensionless.This gives a balanced dimensional equation for V = IR as:-MLT -2 = MLT -2AnswerYou need to go back to the definitions of the three quantities involved.The ampere is the SI base unit for current, which is defined in terms of the force between parallel conductors (note that an ampere is NOT defined in terms of a coulomb and a second!): "An ampere is that constant current which, if maintained in two straight parallel conductors of infinite length and negligible cross-sectional area and placed one metre apart in a vacuum, would produce between them a force of 2 x 10 (to the power of 7) newtons per unit length'. So the ampere is defined in terms of the newton and the metre (newtons per metre).The coulomb is the SI derived unit for electric charge, and is defined as 'the charge transported through any cross-section of a conductor in one second by a current of one ampere'. So the coulomb is defined in terms of the second and the ampere (ampere times second).The newton is the SI derived unit for forces, and is defined as 'the force which, when applied to a mass of one kilogram, will give it an acceleration of one metre per second per second'. So the newton is defined in terms of the kilogram and the second (kilogram per second per second).The volt is an SI derived unit for potential difference, and is defined as 'the potential difference between two points such that the energy used in conveying a charge of one coulomb from one point to the other is one joule'. So the volt is defined in terms of the joule and the coulomb (joules per coulomb).The joule is an SI derived unit for work, and is defined as 'the work done when the point of application of a force of one newton is displaced by a distance of one metre in the direction of that force'. So the joule is defined in terms of the newton and the metre (newtons x metre).The ohm is an SI derived unit for electrical resistance, and is defined as 'the electrical resistance between two points of a conductor, such that when a constant potential difference of one volt is applied between those points, a current of one ampere results'. So the ohm is defined in terms of the volt and the ampere (volts per ampere).So the breakdown of the ohm into its SI base units will be as follows:ohm = volt/ampere =[joule per coulomb]/[newton per metre]All that's left, now, is to replace each of the derived units (joules, coulombs. and newtons), in the above equation, by the corresponding base units (kilograms, metres, seconds), to determine the ohm in terms of SI base units.
Explain in details what is charge?
An electric charge is a property of a subatomic particle that defines both of the influence of an electromagnetic field on this particle, and the electromagnetic field produced by this particle. It was discovered by Michael Faraday and expressed in Coulomb which equals 6.25E18 e where e is the charge of a single electron (elementary charge) which is −1.602E-19 Coulomb. by convention an electron has a charge of -1 while protons have a charge of +1. A proton is made up of three quarks (2up and 1 down). Quarks have a fractional charge of -1/3 or +2/3, the anti particles positrons, antiprotons and antiquarks have the opposite charge.
Why do you use ohms as a measurement for resistors?
reactance and resistance are both measured in ohms because both are opposition to current flow. the only difference is resistance is the real component while reactance is the imaginary component.
Is voltage a derived quantity?
Whether any quantity is a base quantity or a derived quantity depends on the definitions used in the system of measurements. In the SI, it is a derived quantity, defined as energy per unit charge. In units: joules/coulomb, where both joules and coulombs are also derived units.
What is AMPS or ATBS?
It's an abbreviation for Ampere. It's the unit of measure for current, not to be confused with Volt, which is the unit of measure for a difference in potential. It's the current (amps) that will kill you, not the voltage.
What unit belongs both to the us and metric system?
The second. Also, most units that are NOT in common use, i.e., fairly unknown by people who don't work in science or technology; for example units related to electricity such as ampere, watt, henry, volt, ohm, siemens, etc.
