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I f an amplifier has a great gain lets say 1000 and the power supply is 10 v then 10 mv will saturate the amplifier to either rail some amps has 10mv just in offset voltage

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How do you improve open loop system?

Feedback from the output to the input will provide stability and control. It is desirable to havemaximum open loop gain but without proper feedback it will be probably totally unstable


What is the theory of astable multivibrartor?

An astable multivibrator is a type of electronic oscillator circuit that continuously switches between its two unstable states without requiring any external triggering. It consists of two active devices, typically transistors or operational amplifiers, and feedback components like resistors and capacitors. The circuit generates a square wave output, with the frequency determined by the values of the resistors and capacitors used. Astable multivibrators are commonly used in applications such as clock pulses, timers, and signal generators.


What is use of spike buster in relay?

A: I never heard of a spike buster but if you are from England I would understand the different terminology. The use for the spike buster is to protect the driving circuit from negative spikes generated by the relay coil as it releases the power stored in it. The DIODE [ SPIKE BUSTER] will clamp harmlessly the negative spike to .6 to .7v negative which will harm the driving circuit Without the diode hundreds of volts can be generated destroying the driving circuit


What is the difference between oscillator and multivibrators?

Oscillator is an electronic circuit which can generate oscillating sin signal without any oscillating input with use of positive feedback Multivibrator is a two stage RC coupled amplifier circuit which can generate squae signal without ac input


Why astable multivibrator is free running oscillator?

An astable multivibrator is considered a free-running oscillator because it continuously alternates between its two unstable states without requiring any external triggering. It uses positive feedback and the charging/discharging of capacitors to create a repetitive oscillation, generating a square wave output. The circuit's inherent design allows it to self-sustain these oscillations, making it ideal for applications like clock pulses and timing circuits.

Related Questions

Is opamp a linear device?

A: It should be that is the normal operating mode. To be linear it strongly depends on negative feedback to maintain it into that linear region. By itself without any feedback it is very unstable due to the hi gain open loop availability


How are negative and positive feedback involved in homeostatic regulation?

Negative feedback occurs when the output of a system reacts to cancel out the effects of an input of a system, as opposed to positive feedback (in which the actions/output is intensified or increased). The more negative, the more stable. Thus, with things being canceled out, the body maintains homeostasis. An example of negative feedback in action is the maintenance of blood glucose levels and body temperature. With input of sugar, insulin is released to stabilize the body (on the other hand, without insulin, diabetes can be diagnosed). With a raise in body temperature, blood vessels and pores are opened to release heat.


How do you improve open loop system?

Feedback from the output to the input will provide stability and control. It is desirable to havemaximum open loop gain but without proper feedback it will be probably totally unstable


Is it impossible to keep your body chemistry in balance without some sort of negative feedback mechanism?

Negative feedback mechanisms are essential for maintaining homeostasis in the body by responding to changes and restoring equilibrium. Without these mechanisms, it would be challenging to regulate functions such as temperature, pH levels, and hormone levels, leading to potential imbalances and health issues. Thus, negative feedback mechanisms play a crucial role in keeping the body's chemistry in balance.


Can the car run without the negative terminal connected?

The negative teminal needs to be connected to complete the electrical circuit. Without that none of the electronics in the vehicle will work, including the starter.


Why is there a positive and a negative in a car battery?

Because you won't get a complete and closed circuit without a ground.


Why is feedback useful?

So u can understand the subject/person better


What is thermal stability of transistor?

The thermal stability is the ability of the transistor to withstand changes in temperature without the transistor's parameters changing. Transistors generally have poor thermal stability and in particular the Beta parameter increases with temperaure, which can cause thermal runaway in a badly designed circuit. This is well known and the bias current in transistors is normally stabilised by the application of negative feedback in proper circuit design.


What is the importance of negative feedback in the control of vasodilation and vasoconstriction?

Vasoconstriction and Vasodilation are a part of a body negative feedback, in which the body tries to restore homeostasis. Homeostatis is the function of keeping the internal body at it's general temperature (37 degrees Celsius). Without the negative feedback of Vasoconstriction and Vasodilation, the body would either be at a very low or very high temperature and this high/low temperature could cause death.


What do you think would happen to the level of a hormone in the blood if negative feedback didn't happen?

If negative feedback did not occur, the hormone level in the blood would likely continue to increase. Negative feedback mechanisms control hormones by signaling the body to stop producing them once they reach a certain level. Without this regulation, hormone levels could become dangerously high or low, leading to health issues.


Give an example of negative feedback and why it is not constructive then rewrite your feedback to be positive and constructive?

Negative feedback: "Your presentation was boring and confusing; you really need to do better next time." This feedback is not constructive because it focuses on personal criticism without providing specific guidance or encouragement for improvement. Rewritten feedback: "I think your presentation has great potential, but it would benefit from clearer organization and more engaging visuals. Perhaps you could practice emphasizing key points to make it more impactful next time."


Can you have a viable system without feedback?

A system requires feedback to fix out bugs and errors made by the developer, your system can be viable without feedback however getting feedback is recommended