Asked by Andy Blackwell Uncategorized
Name for cgs unit of current in the electromagnetic system equivalent to 10 amperes?
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Asked in Energy, Organic Chemistry, Periodic Table
In what unit is current measured?
Electrical currents are measured in a unit called amperes, which are abbreviated as "amps." There are two different designations that measure currents: direct currents (DC) and alternating currents (AC). Amperes are coulombs per second. Amperes are electrical current units that are part of the meter-kilogram-second system. A flow of one coulomb per second is equivalent to one single ampere.
Asked in Electrostatics, Magnetism
What is the CGS unit of current in the electromagnetic system equivalent to 10 amperes?
The centimetre-gram-second system (abbreviated CGS or cgs) is a metric system of physical units based on centimetre as the unit of length, gram as a unit of mass, and second as a unit of time. All CGS mechanical units are unambiguously derived from these three base units, but there are several different ways of extending the CGS system to cover electromagnetism. CGS approach to electromagnetic units The conversion factors relating electromagnetic units in the CGS and SI systems are much more involved - so much so that formulas for physical laws of electromagnetism are adjusted depending on what system of units one uses. refer to link below for methods
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Asked in Science, Physics, Electronics, Metric System
The ampere is the unit of electric current in the metric system The amount of current per second amperes per second is a?
Asked in Home Electricity, Electrical Engineering
What does 160kVA equate to in amps in a 3 phase system?
Asked in Electrical Engineering
What is meaning of apparent power in transformer?
Asked in Electrical Engineering
What is meant by energy meter having ct ratio - 5?
A CT, or current transformer, has a specified current ratio. The 5 in your question is the current supplied to the metering instrument at full scale. CT's current ratio is always full scale to 5, for instance - 200:5, 3000:5, etc. So, if a CT has a ratio of, say, 1000:5, this means when the conductor being measured is supplying 1000 amperes to the load, the CT will output 5 amperes to the instrumentation. The relationship is linear, so if the current is 500 amperes, the output will be 2.5 amperes, at 200 amperes the output will be 1 ampere, etc. This is done so the instrument can be designed always the same, with a 5 ampere input, no matter what size current is to be measured. Otherwise you would have to order (and manufacture) many different models of meter, one for each current range. The metering must be set, or programmed, with the CT multiplier, so it knows how much current is really flowing when it sees 5 amperes on the input. Similarly, we use PT's or potential transformers to reduce higher system voltages to a range that the instrument can also handle.
Asked in Physics
The cgs unit of current in the electromagnetic system?
Asked in Electrical Engineering
What do you mean by fault MVA?
This describes what is known as the 'fault level' at a particular point in an electricity transmission or distribution system, expressed in megavolt amperes, enabling the theoretical value of fault current to be calculated at that point in the system, in order to ensure that the relevant switchgear is capable of interrupting that level of fault current.
What resistance is necessary to operate a 3 amp device in a 12 volt system?
What is term used when an Alternating current acts like a direct current?
Perhaps you are asking how the voltage of alternating current is measured, to be equivalent to the voltage of a direct current system. Alternating current and direct current have distinct properties. With direct current, voltage is at a constant polarity, and a direct current voltage source will maintain a uniform, constant voltage level. Alternating current reverses polarity at a given frequency and therefore it's voltage continuously varies from a positive peak voltage level, through zero, to a negative peak voltage level, repeating this cycle continuously. For this reason, voltage of an alternating current system, is measured in root-mean-square (rms), which is a voltage, which when multiplied by the current in amperes, calculates power which is equivalent to that of direct current of the same voltage and current values. With a typical sinusoidal waveform, the peak voltage of alternating current is divided by the square root of 2 to determine the rms voltage. The 120 volts output in the wall outlet in our home is actually about 170 peak volts.
How many volts are in 600 watts?
You are confusing electrical potential (Volts) and power (Watts). The equation for power (watts) is P = VI where V is volts (a measure of electrical "pressure") and I is current in amperes (the rate of flow of electricity). If the system is 120V and the power used is 600W then the current used is 5A. If the system is 240V and the power used is 600W then the current used is 2.5A.
Asked in Physics, Energy, Technology
What energy conversion take place in a stereo?
A stereo is a simpler version of today's home audio system or a home theater system. In the past, a stereo was unified audio component (box) that did everything starting with receiving and tuning the AM, FM, etc. signals, to finally outputting them to connected speakers. The basics of a "stereo" system is that it takes electromagnetic power (current, either AC or DC) to power itself and its internal amplifiers and tuners. The tuner that's selected (AM, FM, etc) then takes any electromagnetic energy (radio waves) collected by the antenna, and both tunes (selects) a specific frequency band and amplifies that band. At this point, the electromagnetic energy (radio waves) have been converted to another form of electromagnetic energy (current). This current (tuned frequency signal) is IF-subtracted / demodulated, and eventually converted to another current representing an amplitude-significant signal. This AM signal (current) is fed to another amplifier, and then piped to the speaker(s). The speakers convert the electromagnetic energy (current) that's fed to them into mechanical energy that pushes on the speaker's surfaces. The speaker converts this mechanical energy (motion) into audio distortions in the air/atmosphere which we call sound (pressure). So, conversions are: electromagnetic energy (radio waves) \/ electromagnetic energy (current) \/ mechanical energy (speaker motion) \/ mechanical energy (air pressure) \/ MMMUUUUSSSSIIIIIICCCCCC!!!!!!!!!
What is fundamental units of the international system called?
Is a voltage and current source the same thing?
Yes they are the same thing! *********************** They are certainly not the same thing. Voltage, or e.m.f. (electromotive force), is the cause of current. A common analogy is that voltage is similar to pressure in a hydraulic system, while current is the volume of flow which results from a given voltage. In a hydraulic system it might be, for instance, in gallons or litres per second. In electricity it is coulombs per second and is given the name amperes, abbreviated to the upper case A.
What is reactive power in electrical system?
It is product of Current,Voltage and Sin angle between current and voltage. Reactive Power = Current(I)*Voltage(V)*Sin(angle B/W Voltage and Current) It is also know as the power used in transformation of energy in one form to another form. Answer Reactive power is the rate at which energy is alternately stored in a magnetic or electric field and returned to the supply of an AC circuit, and is expressed in reactive volt amperes. Reactive power is associated with inductive or capacitive loads. The vector sum of reactive power and true power (watts) is called the apparent power (volt amperes) of the circuit.
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Asked in Science, Lakes and Rivers, Education
Where is the strongest current in a river system Where is there less current?
What are the benefits of a 240 volt appliance?
If you needed to perform the same amount of work with 120 volts, you would need twice as much current. For example, a room air conditioner using 240V might use 8 amperes of current. If you cooled the same room with an A/C unit running on 120V, it would take 16 amperes of current (actually a little more because of reduced efficiency). That means your wiring will need to be larger to safely deliver the additional current to the outlet. You would also need an outlet that is rated to safely carry the higher current. In countries where 200-240 volts is normal, the entire electrical delivery system can be smaller and cheaper because of the overall reduction in current demand.
Asked in Physics
What system changes electromagnetic radiation into electricity?
Difference between voltage and current?
Voltage is electrical potential, measure in derived units of volts, which is joules per coulomb. Current is electrical flow, measured in derived units of amperes, which is coulombs per second. Stated in other terms, voltage is energy per charge, while current is charge per time. That makes power, or watts, equal to energy per time, and that is joules per second. If you think of the water system analogy, volts is sort of similar to pounds per square inch (though not completely so), while amperes is similar to gallons per minute. Answer Voltage is synonymous with 'potential difference' -not potential- measured in volts. Current is the flow of electrical charge, measured in amperes. The volt is an SI derived unit, wheras an ampere is an SI base unit.