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An AC has a peak value of 12 amps what is the average value of the current?
Wiki User
∙ 12y ago
i think average value of current in ac current is zero.
Wiki User
∙ 12y ago
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What affects the value of peak current?
From ohms law, I = V/R hence Voltage and Resistance can affect the value of current, both peak and average. Also with a rectifier circuit other factors can affect the peak current such as frequency and capacitance Craig - AUT
What is the Electrical circuit breaker making and making capacity?
making current is a peak value attain at first cycle when the circuit breaker is close.the making current rating is expressed in "peak" value of the maximum ac current it can safely close on that's why it is always have higher value than breaking current. Making current is limited by the withstand capability of the contacts. Breaking current is based on the ability of the contacts to interrupt the current. If the contacts are not able to interrupt the current when they open, the heat energy in the resulting arc will often destroy the device. the breaking current rating is expressed in RMS value of the current.
Rms value of AC current is equal to main current at an angle?
The root-mean-square value is 0.707 times the peak value, for a sinusoidal voltage or current. Angle doesn't come into it.
What is ip in motor?
I p or current peak sometimes LRA (locked rotor amps) on the nameplate kva class F would mean peak current 7 times the running full load current starting current same thing different names same idea
What is the difference between rms value and average value of AC?
rms value of ac power = dc power in reference to heat production in pure resistive load So ac power of some rms value will produce the same heat in resistive load as dc power will of same value
The average value of a single sine wave of AC is 42.5amps. what is rms value?
Average Current = 0.636 * (Peak Current)so Peak Current = (Average Current)/0.636RMSCurrent = 0.707 * (Peak Current)so Peak Current = (RMS Current)/0.707Because both equations are in terms of Peak Current, we can set them equal to each other.(Average Current)/0.636 = (RMS Current)/0.707(42.5)/0.636 = (RMS Current)/0.707thenRMS Current = (0.707)(42.5)/0.636 = 47.24 ampsAnother AnswerSince the average value of a single sine wave is zero, you cannot calculate its r.m.s. value!
What is RMS Peak value and average value?
RMS is used to determine the average power in an alternating current. Since the voltage in an A/C system oscillates between + and -, the actual average is zero. The RMS or "nominal" voltage is defined as the square root of the average value of the square of the current, and is about 70.7% of the peak value.************************************************************The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.Fo a sine wave, the r.m.s. value is 0.707 x the peak value.The average value is different; for a sine wave it is 0.636 x the peak value.
Why is the class A current less than the peak current?
Not sure what you mean by Class A current. Normally, when measuring AC voltage or current you either measure the peak to peak value or the Root Mean Squared (RMS) value. Since RMS is essentially an average measured over time, it would always be less than Peak to Peak value.
What affects the value of peak current?
From ohms law, I = V/R hence Voltage and Resistance can affect the value of current, both peak and average. Also with a rectifier circuit other factors can affect the peak current such as frequency and capacitance Craig - AUT
What is link between maximum current and average current?
You are, presumably, referring to alternating current, in which case the 'maximum' current is the peak or amplitude of the waveform. The 'average' value of current is zero, because the average value of the first half of each cycle is negated by the average value over the second half of each cycle. This is why a.c. currents and voltages are always expressed in 'root-mean-square' (r.m.s.) values which is the value of an a.c. current that does the same amount of work as a given value of d.c. current. The r.m.s. value for a sinusoidal current (and voltage, as voltage and current are proportional) is 0.707 times the peak or maximum value.
What do you compare with a alternating current and a direct current?
The Alernating Current can be compared to a Direct Current using the AC's Root Mean Square value. That is about .707 times the Peak value, or the sin of 45 times the peak value or, 1 over the square root of two times the peak value. All three are the same essentially. This RMS value is like the average current or voltage that the load see's throughout one cycle.
What is the relationship between peak current peak to peak current and RMS current?
RMS is the root mean square value.(in alternating current only)
Is Cathode ray oscilloscopes measure peak to peak value or average or root mean square value?
peak - peak.
If a sine wave has a peak-to-peak current value of 10 Awhat is its rms value?
The root-mean-square (rms) value of a sinusoidal voltage or current is given by: Vrms = 0.707 Vmax and Irms = 0.707 ImaxSo, if the current has a peak-to-peak value of 10 A, then Imax will be half that value (5 A) , so the corresponding rms value is:Irms = 0.707 Imax = 0.707 x 5 = 3.54 A(Answer)
Why do you have to find RMS value?
Root mean square (average ***) voltageBecause ac (alternating current) does not warm up a lamp, heater, etc. as well as a direct current of the same value as the peak ac, we need to work out how to find the equivalent dc (direct current) voltage for the ac situation.The r.m.s. value of an alternating current or voltage is the value of direct current or voltage which produces the same heating effect.For a sine wave, the r.m.s. value is 0.707 times the peak value, or, conversely, the peak value is 1.414 times the r.m.s. value.Peak voltagePeak voltage is measured from the zero axis to the top of the curve. So, in the case of the UK mains supply, where the average r.m.s. voltage is 230 volts, Vpeak = √2 x Vrms = √2 x 230 V = 325.22 volts.Note: The average voltage is always zero.*** The average value and the r.m.s. value of a sine wave are not the same thing. The average value of a sine wave is 0.636 x the peak value.
Conversion of RMS CURRENT to peak current?
In an AC circuit the voltage and current are n the form of a sine wave that goes between a maximum and minimum value 60 times a second. Measuring the difference between these values is a peak-to-peak measurement. Root Mean Square (RMS) computes an average (mean). To convert RMS to peak, multiply the RMS figure by 1.41. 1.41 is an approximation of the value of the square root of 2.
What is the Electrical circuit breaker making and making capacity?
making current is a peak value attain at first cycle when the circuit breaker is close.the making current rating is expressed in "peak" value of the maximum ac current it can safely close on that's why it is always have higher value than breaking current. Making current is limited by the withstand capability of the contacts. Breaking current is based on the ability of the contacts to interrupt the current. If the contacts are not able to interrupt the current when they open, the heat energy in the resulting arc will often destroy the device. the breaking current rating is expressed in RMS value of the current.
