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This is a simple derivation problem. Take the derivative of the AC voltage waveform (I'll assume sin (t)), and set the derivative equal to the maximum value it can attain (which is 1):
cos (t) = 1, t = 0 degrees, thus for an AC waveform of y = sin(t), the fastest increase in voltage occurs at 0, 360, etc. degrees. The fastest decrease in voltage will occur at 180, 180 + 360, etc. degrees.
What else can I help you with?
What is RRRV in power plants?
Rate of Rise of Re-striking Voltage is a voltage which is found when fault occurs in a power circuit protected by Circuit Breaker. This voltage may be twice the system voltage.
What is slew rate?
slew rate is the ability of an amplifier to reproduce amplified version of the input signal in terms of frequency and phase. The input signal amplitude change is fast. But the amplifier will take some time to give response to the changes in input signal. i.e. how fast the amplifier tracks the input signal is the slew rate. For an amplifier the slew rate should be high in order to avoid signal distortion. The rate of change of the output voltage of an amplifier for the given input signal change is called the slew rate.
Why must the instantaneous current wave be exact 90 degree out-of phase with the applied voltage waveform across an ideal inductor?
Because the voltage induced is proportional to the rate of change of current, and the maximum rate of change of current occurs at the point where the current waveform is 'steepest' -i.e. as it passes through zero. So, as the current passes through zero, the corresponding value of induced voltage is maximum, which means the voltage and current waveforms are displaced by a quarter of the wavelength, or 90 degrees.
Why voltage leads in Inductor?
Maximum induced voltage occurs when the current is changing at its greatest rate -this occurs when the current passes through zero. Since this voltage acts to oppose current flow, this maximum voltage acts in the negative sense when the current is acting in the positive direction. Since the supply voltage is equal, but opposite, the induced voltage, it is maximum when the current is zero -so leads by 90 degrees.
How many volts equals 50Hz?
Voltage is a measure of potential difference while Hertz is the term we use for cycles per second when we consider rates of change. We might say 50 Hz is a rate of change of voltage equal to 50 cycles of that voltage per second. There isn't a way to "convert" voltage to Hertz.
In a sine wave at what angle or angles is the amplitude increasing at its fastest rate?
The amplitude of a sine wave is increasing at its fastest rate at the maximum points (90°, 270°) and decreasing at its fastest rate at the minimum points (0°, 180°).
What is ramp voltage?
Ramp voltage is a voltage that can be steadily increasing or decreasing.
Which two crystals grow fastest?
Alum crystals and sugar crystals grow at the same rate at an increasing time rate making them grow the fastest
Which sample would dissolve the fastest rate when placed in a container of dilute hydrochloride acid?
The sample that has the largest surface area will dissolve the fastest in dilute hydrochloric acid because more surface area allows for more contact between the sample and the acid, increasing the rate of dissolution.
Which would have the fastest pulse rate adult adolescent child or infant?
Infants will have the fastest pulse rate.
The resting heart rate is fastest in adult life?
is the resting heart rate is fastest in adult life
The rate at which temperature decreases with increasing altitude is known as?
The rate at which temperature decreases with increasing altitude is known as the lapse rate.
How does voltage in cells and batteries affect energy transfer in circuits?
Voltage in cells and batteries drives the flow of electric current in circuits. A higher voltage means more energy is available to push the electrons through the circuit, increasing the rate of energy transfer. Conversely, a lower voltage will result in slower energy transfer.
Can you give me a sentence for the word death-rate?
Due to an increasing population, the death-rate is also increasing.
Med route absorption fastest to slowest?
rate of absorption from fastest to slowest
802.11 fastest transmission rates?
Fastest transmission rate would be 802.11n
What device typically has the fastest transfer rate?
RAM (Random Access Memory) storage devices typically has the fastest transfer rate.
