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What is class AB push pull amplifier and give its circuit and description .?
"What is class AB push pull amplifier and give its circuit and description .?"
What is a class 2 circuit?
A Class 2 circuit is the portion of the wiring system between the load side of a Class 2 power source and the connected equipment. Due to its power limitations, a Class 2 circuit considers safety from a fire initiation standpoint and provides acceptable protection from electric shock.
A class B amplifier is biased?
hi i m nishikantanswer is: in class B devices are biased approx at cutoff.
Which amplifier has more efficiency than class b amplifier?
Class C amplifier.. A class D amplifier is more efficient than class B, and is more efficient than class C as well.
What is the meaning of wiring type class a?
This is a wiring method used primarily in Fire Alarm systems. It means there are two paths for an alarm to be detected. A Class A circuit will have two wires from the alarm panel to the detector (heat, smoke, etc.) AND two more wires that go from the detector back to the panel. The detector now has two paths to report an alarm. The official definition states that any single wire break shall not prevent the alarm signal from reporting to the panel. Since both ends of the circuit end up back at the panel, it can directly monitor the wires for breaks. The alarm panel must be a model designed for Class A circuits. The other type of circuit found in fire alarm systems, Class B, omits the return wires and has just one path for the alarm. Class B circuits have a resistor placed at the end to provide supervisory current to monitor the wires for breaks. Class A and B can also be applied to alarm notification circuits, like bell, horn, speaker, and strobe circuits. Same principles apply, only in reverse. Now the signal goes from the panel to the notification appliance.
Why you use pushpull complementary symmetry for class B power amplifier?
Because the output device in a class B amplifier are biased at cutoff, they only amplify one half of the input waveform, so a complementary stage, biased at class B, is needed to output the other half. There are several circuit layouts to do this.
Which “class” of fires consists of flammable liquids including stove alcohol, gasoline and diesel?
Class "B"
What is open circuit and short circuit?
Consider two points (A and B) in an electric circuit. An open circuit between A and B means there is no electrical connection between A and B. A short circuit between A and B means there is an electrical connection between A and B.
If circuit A has 2 lamps and 1 cell while circuit B has 2 lamps and 2 cells, which circuit’s lamps are brighter?
Circuit B
When the class b is inherited from class a class a is called what?
Class B is said to be a "subclass" of class A.
In the UK is marijuana class a class b or class c drug?
Class b
What is a class a fire alarm system?
A Class-A zone differs from a standard Class-B zone in that it does not use an EOL resistor at the end of the zone. Instead, the zone is looped back into Class-A input terminals on the circuit. Class-A must first be programmed on the panel for it to be used, and it is not available on all panels.
Which of B class or c class is heavy pipe?
B class pipe is heavier.
Which class does the IP address 199.199.10.0 belong to?
Class B, if you are referring to classful addressing schemes.
What is class AB push pull amplifier and give its circuit and description .?
"What is class AB push pull amplifier and give its circuit and description .?"
Examples of inheritance in c plus plus?
Single-inheritance is where one class inherits directly from another class: class A {}; class B : public A {}; Here, class B inherits all the public and protected members of class A. Multiple-inheritance is where one class inherits directly from two or more classes: class A {}; class B {}; class C : public A, public B {}; Here, class C inherits all the public and protected members of both A and B. Multi-level inheritance is where one class inherits from another class that itself derived. class A {}; class B : public A {}; class C : public B {}; Here, class B inherits all the public and protected members of A while class C inherits all the public and protected members of B, including those inherited from A. Virtual inheritance applies to multi-level inheritance whereby a virtual base class becomes a direct ancestor to the most-derived class. This variation of inheritance is typically used in multiple inheritance situations where two or more intermediate classes inherit from the same base class: class A {}; class B : public virtual A {}; class C : public virtual A {}; class D : public B, public C {}; Here, classes B and C both inherit from class A. Without virtual inheritance this would mean class D would inherit two instances of A (B::A and C::A), thus creating ambiguity when referring to D::A. By employing virtual inheritance, D inherits directly from A, and both B and C inherit from D::A. In other words, B and C share the same instance of A. Another use of virtual inheritance is when you need to make a class final. class A; class B { friend class A; B() {} // private constructor }; class A : public virtual B { }; Here, class A is the final class. Class B is a helper class that has a private constructor while class A is declared a friend of class B. Class A is therefore the only class that can inherit from class B as it is the only class that can construct objects from class B. However, by inheriting class B virtually, we ensure that no other class can be derived from class A because virtual inheritance ensures that the most-derived class must be able to construct a class B object first. Currently, only class A has that privilege and must always be the most-derived class.
What is a concrete class?
not class B
