Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Show the familiar electric sources?
Batteries and ac outlets are the familiar electric sources. These are voltage sources.An ideal voltage source is one whose terminal voltage v is a specified function of time, regardless of the current i through the source. An ideal battery has a constant voltage V with respect to time, as shown in Figure (a). It is known as a dc source, because i = I is a direct current. Figure (b) shows the symbol and time variation for a sinusoidal voltage source with v = Vm cos ωt .
The positive sign on the source symbol indicates instantaneous polarity of the terminal at the higher potential whenever cos ωt is positive. A sinusoidal source is generally termed an ac source because such a voltage source tends to produce an alternating current.
The concept of an ideal current source, although less familiar but useful as we shall see later, is defined as one whose current i is a specified function of time, regardless of the voltage across its terminals. The circuit symbols and the corresponding i-v curves for the ideal voltage and current sources.
Even though ideal sources could theoretically produce infinite energy, one should recognize that infinite values are physically impossible. Various circuit laws and device representations or models are approximations of physical reality, and significant limitations of the idealized concepts or models need to be recognized. Simplified representations or models for physical devices are the most powerful tools in electrical engineering. As for ideal sources, the concept of constant V or constant I for dc sources and the general idea of v or i being a specified function of time should be understood.
Q MCM is the abbreviation for 1 kcmil. problem for a de?nition of cmil.) Data for commercial-base aluminum electrical conductors list a 60-Hz resistance of 0.0880 /km at 75°C for
Q. A 25-kVA, 2200:220-V, 60-Hz, single-phase transformer has an equivalent series impedance of 3.5 + j4.0 referred to the primary high- voltage side. (a) Determine the highest
A network function is given by (a) For x(t) = δ(t), obtain y(t). (b) For x(t) = u(t), obtain y(t). (c) For x(t) = e -4t , obtain y(t). (d) Express the differenti
Q. Computer-aided circuit analysis using MATLAB ? This text does not teach MATLAB; it assumes that the student is familiar with it through previous work. Also, the book does no
I need a simple design of above mentioned , this oscillator will be used in a wireless power transmission
N-type semiconductor is an example of (A) Extrinsic semiconductor. (B) Intrinsic semiconductor. (C) Super conductor. (D) Insulators.
Explain the Basic concepts in memory interfacing The primary function of memory interfacing is that the microprocessor should be able to read from and write into a given regist
connect two given points A and B by a parabolic curve when OA=60mm,OB=80mm and angle AOB=110 degree
what do you mean by band in communication? how it differs from bandwidth?
The property due to which the resistance of some metal or compound vanishes under certain conditions is (A) Semi conductivity. (B) Super conductivity.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd