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What will happen to the output ac signal if the dc level is insufficient?

What will happen to the output ac signal if the dc level is insufficient? Sketch the effect on the waveform.


Is output of astable multivibrator using 555 AC or DC?

it's ac; astable multivibrators are unstable in both of their two states, so they switch back and forth, switching the polarity of the circuit.


Show an arrangement to extract the amplitude as well as the phase information contained in the ac output of an lvdt.?

To extract amplitude and phase information from the AC output of a Linear Variable Differential Transformer (LVDT), you can use a combination of a precision rectifier and a phase-sensitive detector (PSD). The precision rectifier converts the AC signal to a DC level proportional to the amplitude, while the PSD, synchronized with the reference signal, measures the phase difference between the AC output and the reference signal. By processing the rectified signal and the output from the PSD, you can obtain both the amplitude and phase information of the LVDT output. Additionally, using an oscilloscope can visualize both the amplitude and phase for further analysis.


What is DC generator?

because DC generator generates generally generate DC power but as it has slip rings which convert it into ac output power


The small amount of ac signal present on the output of a filtering network for a dc power supply is known as?

Ripple.


Alternating current can be changed to direct current by?

using a rectifier, which converts the AC signal into a pulsating DC signal, and then using a filter to smooth out the pulsations in the signal, resulting in a steady DC output.


Where are high pass filters used?

High pass filters are used in circuits such as microphones to block out DC signals and pass the AC. In a microphone, DC power is used to power the microphone but should not appear on the output with the audio signal. Only the AC should appear on output which represents the voice signal, music, etc. To block out DC and pass AC, a high pass filter is used.


What is phase in current?

Phase applies only to AC current and not DC current. Reactive components - inductors and capacitors - in a system will result in the system output either lagging or leading (capacitance lags and inductance leads). If we apply an AC signal to the input of a system, we can observe the input and the output on an oscilloscope. If the system lags then the output signal will appear to be shifted to the right relative to the input singal, and vice versa for a system that leads. Since AC signals are periodic we think of one period as being 360 degrees (or 2*pi radians). The phase of output signal relative to the input signal is thus measured in degrees. For example: An AC signal of period of 10 seconds and a peak current of 2A is applied to the input of a system. The output is measured and it is found that the output current peaks 3 seconds after the input voltage - so the output lags the input, meaning the circuit has a capacitive reactance. What is the phase of the output relative to the input? Since T=10 and the phase difference in seconds is 3 the solution is simple: 360 / 10 * 3 = 108 degrees So; the output lags the input with a phase difference of 108 degrees.


What is in phase?

Phase applies only to AC current and not DC current. Reactive components - inductors and capacitors - in a system will result in the system output either lagging or leading (capacitance lags and inductance leads). If we apply an AC signal to the input of a system, we can observe the input and the output on an oscilloscope. If the system lags then the output signal will appear to be shifted to the right relative to the input singal, and vice versa for a system that leads. Since AC signals are periodic we think of one period as being 360 degrees (or 2*pi radians). The phase of output signal relative to the input signal is thus measured in degrees. For example: An AC signal of period of 10 seconds and a peak current of 2A is applied to the input of a system. The output is measured and it is found that the output current peaks 3 seconds after the input voltage - so the output lags the input, meaning the circuit has a capacitive reactance. What is the phase of the output relative to the input? Since T=10 and the phase difference in seconds is 3 the solution is simple: 360 / 10 * 3 = 108 degrees So; the output lags the input with a phase difference of 108 degrees.


Is signal ac or dc?

ac


What is the ac equivalent circuit for a transistor?

Transistor are DC output, Triac are AC output.


What is AC signal control system?

An AC signal control system is a type of control system that manages and regulates alternating current (AC) signals in various applications, such as power electronics, telecommunications, and audio systems. It typically involves the use of feedback mechanisms to maintain desired output levels and improve system stability. These systems can include components like amplifiers, filters, and oscillators to manipulate the AC signal's amplitude, frequency, and phase. Their primary goal is to ensure accurate and efficient performance in applications requiring precise AC signal management.