1. What is a transformer ? How does it transfer electric energy from one circuit to another ? 2. Explain the principle of operation of a transformer. 3. What is meant by transformer action ? Under what conditions will it take place ? 4. If an alternating current is impressed on one coil, what will be the frequency of the induced voltage in another coil with which it is coupled ? 5. Enumerate the various kinds of transformers. 6. Explain the need for stepping up and stepping down voltages in a power system. How does a transformer accomplish? 7. Why are transformer windings divided into several coils ? 8. What properties should a good transformer oil possess? 9. What purposes are served by placing transformers in oil-filed tanks ? 10. Why are the tanks of some large transformers corrugated ?

Q: A certain voltage is +11.1 V for 21.8 ms and -11.1V for the succeeding 21.8 ms and continues…

A: For the first time at , .For the succeeding , .The resistance value is .

Q: What is the I total

A: For the given series RLC circuit the value of total current needs to be calculated and the same can…

Q: (b) For the given circuit please answer the following questions (i) Name the whole circuit. (ii)…

A: For the given circuit, (i) The given circuit is a 4-bit asynchronous down counter.   (ii) The…

Q: How would you sketch the left side of this image

A: The model is as shown below :

Q: Determine decimal values of the signed binary numbers expressed in 2’s compliment a. 01010110 b.…

A: In order to convert any base to decimal value each digit in binary is multiplied with their…

Q: The number of Hamilton Circuits in K20 is

A: Hamilton Circuits:A Hamilton circuit is one that passes through each point exactly once cover all…

Q: value will be increased

A:

Q: Ex. 304 See Figure 280. G(s) =1007( (s+2)(s+ 6) ), H (s) =1, and R(s)=1/s (unit step input).…

A: It is given that: Gs=100s+2s+6Hs=1Rs=1s

KVL and KCL

KVL stands for Kirchhoff voltage law. KVL states that the total voltage drops around the loop in any closed electric circuit is equal to the sum of total voltage drop in the same closed loop.

Sign Convention

Science and technology incorporate some ideas and techniques of their own to understand a system skilfully and easily. These techniques are called conventions. For example: Sign conventions of mirrors are used to understand the phenomenon of reflection and refraction in an easier way.