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The ampere (it is not capitalised), symbol A, is the SI Base Unit for electric current, which is defined in terms of the force between two, parallel, current-carrying conductors, due to the interaction of their magnetic fields, i.e: '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 equal to 2 × 10-7 newtons per unit length'.
Note that the ampere is NOT defined in terms of the coulomb, as incorrectly stated in many references, because the coulomb itself (an SI Derived Unit) is defined in terms of the ampere -and you cannot define an ampere in terms of something that is already defined in terms of the ampere!!
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∙ 10y ago
Wiki User
∙ 15y agoMeasurement of Current.
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How many standard lighting outlets on a 20 ampere circuit?
16 outlets or 80% of the total Amperage of the circuit.
What is the difference of Ampere Frame and Ampere Trip of Circuit Breaker?
Hi AF Ampere Frame Maximum Long Time current available in the physical package of CB AT - Ampere Tripping long time trip setting of the CB Nishantha DCL
What is the maximum volt-ampere loading permitted on a 20-ampere branch circuit with a continuos load is?
The wattage of the circuit presuming that the circuit voltage is 120 volts. 20 x 120 = 2400 watts. Circuit loading on a continuous load is 80% so 2400 watts x .8 = 1920 watts
What is the minnimum size equipment grounding conductor required by the NEC for a branch-circuit protected by a 50-ampere rated circuit breaker?
#10 copper
What happen when a fuse wire of 100 ampere is used when a circuit at home draws a maximum current of 20 ampere?
The fuse or breaker should be no bigger than specified for the wiring and devices on the circuit. Your nominal current draw may be 20 amps, but a short circuit would cause maximum current to flow which in this case would be 100 amps until the fuse blew.
What is the charge flowing per second in a circuit?
The numerical representation of one coulomb of charge moving past a point in a circuit per second is called an ampere.
What is the ampere rating of circuit A16?
14
What are the breaker ampere trip ratings?
The ampere frame rating for a circuit breaker designates how the circuit breaker should be configured. It also states the trip unit of the amp.
What are unit amps?
An "ampere" is a measure of the current in an electrical circuit.
How many standard lighting outlets on a 20 ampere circuit?
16 outlets or 80% of the total Amperage of the circuit.
What is the proper ampere rating of circuit breaker for electric arc welder?
The proper ampere rating of a circuit breaker for an electric arc welder depends on the arc welder. Each is different. Look at the nameplate on the arc welder and choose the circuit breaker and wiring accordingly.
What is the current in circuit with 6 v battery and 2 resistor?
3 ampere
What is the difference of Ampere Frame and Ampere Trip of Circuit Breaker?
Hi AF Ampere Frame Maximum Long Time current available in the physical package of CB AT - Ampere Tripping long time trip setting of the CB Nishantha DCL
What is the meaning ampere protection?
Amperes refer to the current in an electrical circuit. Ampere protection is rarely used but it refers to current protection. Typically this will relate to protection against over current events with fuses or circuit breakers.
What is the maximum volt-ampere loading permitted on a 20-ampere branch circuit with a continuos load is?
The wattage of the circuit presuming that the circuit voltage is 120 volts. 20 x 120 = 2400 watts. Circuit loading on a continuous load is 80% so 2400 watts x .8 = 1920 watts
What is an ampere-turn?
An ampere-turn is the unit of magnetomotive force, the work required to carry a magnetic monopole of unit strength once around a magnetic circuit.
What is the difference between Kilovolt Ampere and Kilowatt?
A kilowatt is an unit of true power in an AC circuit -as measured by a wattmeter. A kilovolt ampere is an unit of apparent power in an AC circuit, which is the product of the voltage across a load by the current through it. The relationship between the two is: kilowatt = (kilovolt ampere) x (power factor of load)
