- #1

cemar.

- 41

- 0

Im just curious what the units are for coulombs and volts in m kg and s.

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In summary, the SI system has seven base units: meter, kilogram, second, ampere, kelvin, mole, and candela. Coulombs and volts cannot be represented solely in terms of m, kg, and s, but can be defined in terms of these base units. The candela is still considered a base unit, defined as the luminous intensity of a source emitting specific radiation.

- #1

cemar.

- 41

- 0

Im just curious what the units are for coulombs and volts in m kg and s.

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- #2

chroot

Staff Emeritus

Science Advisor

Gold Member

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In terms of these base units:

[itex]C = A \cdot s[/itex]

[itex]V = \frac{ kg \cdot m^2 }{ A \cdot s^3 }[/itex]

- Warren

- #3

mgb_phys

Science Advisor

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Is the Candela still a base unit ?

"The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 10^12 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian."

Sounds like you could define it in terms of energy / length?

A coulomb is a unit of electric charge, equal to the quantity of electric charge transported by a constant current of one ampere in one second. It is represented by the symbol "C" and is named after the French physicist Charles-Augustin de Coulomb.

A coulomb can be measured using an instrument called an ammeter, which measures the flow of electric charge in a circuit. It can also be calculated by multiplying the current in amperes by the time in seconds.

A volt is a unit of electric potential or electromotive force. It is defined as the potential difference between two points in a conductor carrying one ampere of current and producing a power of one watt. It is represented by the symbol "V" and is named after the Italian physicist Alessandro Volta.

A volt can be measured using an instrument called a voltmeter, which measures the difference in electric potential between two points in a circuit. It can also be calculated by dividing the power in watts by the current in amperes.

Coulombs and volts are both units of measurement in the study of electricity. Coulombs represent the quantity of electric charge, while volts represent the potential difference or force that drives the flow of electric charge. They are related by Ohm's law, which states that voltage is equal to the product of current and resistance (V=IR).

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