QUIZ Summary 19-09-2017

Quiz 18-09-2017

16th Quiz Q&As

Daily Quiz (Whatsapp) - 15-09-2017 : Questions and Answers

Q1.01
One Newton-meter per Coulomb is also called :
A. Volt ; B. Ampere ; C. Joule;  D. Farad

Q1.02
When Energy increases linearly with time, power is :
A. Increases;  B. Decreases;  C. Constant;  D. Exponential

Q1.03
What is the voltage drop between points A and B if it requires 30 Joules to move a 2 Coulomb charge from A to B  ?

A. 10V;   B. 12V;   C. 14V;   D. 15V

Q1.04
What is the power absorbed by an element when a current of -3A enters the negative terminal of the element and the voltage drop across the element is +5V ?
Please note : Polarity of the power is also important.

A. -20W;   B. -15W;   C. +15W;   D. +20W

Q1.05
A stove element draws 10 A when connected to a 110-V line. How long does it take to consume 60kJ ?

A. 54.5454 s;   B. 45.4545 s;   C. 44.4444 s;   D. 55.5555 s; 

Answer :   1.01: A  ;  1.02: C  ;  1.03: D  ;  1.04: C  ; 1.05: A

Daily Quiz Questions 01 to 15

How to Calculate RMS ,Average and Form Factor of an AC waveform ?

Dear Students,

Please check these short videos from youtube  that explain this very clearly.
Watch as many times as you want to and get the procedure clear in your mind.

How to calculate RMS and Average of AC waveform ?

Example 1 

Example 2

Example 3

Theory :

Problem Set 12 Node and Mesh Analysis - Level 02

Problem Set 11 : Instantaneous power, average power calculations

Home work

Answer KEY to first TEST

Problem Set 09 and 10 : Kirchoff's Current and Voltage Laws : Level 01 and 02 exercises

Dear Student,

Please click the link  to download  :

 Problem Set 09.

Problem Set 10.


Best
HoD-ECE-SVIT

Problem Set 08 : Resistor , Capacitor combinations and reduction

Remember :
Resistors R1 and R2  in series Req = R1+R2 
Resistors R1 and R2 in parallel Req = R1R2/(R1+R2)
Capacitors C1 and C2  in series Ceq = C1C2/(C1+C2)
Capacitors C1 and C2 in parallel Ceq = C1 + C2

         

Problem Set - 07 : RLC Calculations (Save the image and zoom for clarity)

Problem Set 06 : Solving matrix equations of AX=B using Cramer's rule or X = inv(A)*B method

Basics of BEEE and Problem Set 05

Q1. Find the equivalent resistance between

 

Q2. Solve the following matrix equation :

 

Remember : Learn the methods quickly now and you will be very happy when the same maths is required when solving circuit problems later.

Q3.
Answer the following :
1. What is the charge of an electron ? a Proton ?
2. Define current. How is it related to charge ? Unit of current is ? Why is it called so ?
3. What is a resistance ? What are the units of resistance ? Why is it so ?
4. When will current flow in a resistance ?
5. What is the law that governs current flow in  a resistor ?
6. Define voltage / Potential.
7. Define power. How is it related to voltage and current ?
8. Define energy. How is it related to power ?
9. What is the power in  a resistor ?
10. Define Capacitance. What is the unit of capacitance ? Why is it so ?
11. Write the equation the relates the voltage  and current  in a capacitor (C).
12. What is the formula to find the capacitance of a parallel plate capacitor (area of plate = A, distance between the plates = d).
13. What is permitivity ?
14. What is Faraday's law of electromagnetic induction ?
15. Write the equation that defines the voltage induced in a coil in which flux is changing with time.
16. Write the equation that relates voltage and current in an inductor (L).
17. What is the formula to find the inductance of a coil with N turns, area of core cross section A, length of the coil is l ?
18. What is permeability ?

.........keep answering as the we cover the above topics in the class. MORE QUESTIONS will be added.

HoD-ECE-SVIT

Charge and current : Problems

Resistor, Capacitor and Inductor (RLC) ; Kirchoff's current and voltage laws; Star-Delta & Delta to Star Transformation

Dear Students,

All electronic systems are made up of a variety of devices with diverse characteristics. However, the basic elements in every circuit contain Resistive , Capacitive and Inductive elements.

Without a good working knowledge of these basic and passive components, progress in this field will be impossible.

Given below is the summary of RLC components along with the laws they obey. Voltage, Current, Energy and Power expressions are also provided for ready reference.

A complete explanation will of course  be provided in the class lecture.

Application of Complex Numbers in networks : Series parallel combinations

Dear Students,

We saw how Complex numbers appear in  Engineering computations.
While the theory of complex numbers is very large, it is sufficient to limit our understanding to simple manipulations such as : addition, subtraction, division, square root of complex numbers.
We must also perfect the conversion of complex numbers  from one form to another (rectangular, polar and exponential).

The secret of confidence and ultimate success in your studies is to learn a little bit , apply it to a problem and solve it, then move to the next level.

Keep moving from theory to problems to theory as frequently as possible.
You will definitely become a pro.

Here is your problem set 03. Keep working ....

Basics of Matrices: Solution to simultaneous equations - Cramer's rule

Dear Student,

Hope you are slowly beginning to understand the need for strong math skills early in your studies.
Complex numbers is your first challenge. However, take your time to understand by forming study groups and asking the right questions.

Learn what is new and teach what you learn. This cycle of teaching and learning must be followed for strong foundation in any area of your interest.

In today's post I am sharing the basic skills required for solving algebraic equations using matrix operations.

These are very simple to understand but do not neglect practice.

Practice makes you perfect. Perfection is the hallmark of a professional. 

Complex Numbers : Basics with Exercises

Dear Student,

This will be your site for all information for our subject Basic Electrical and Electronics Engineering.

A few  basics first.

A strong foundation and a confident beginning to your career goals will be formed during your first semester.

Focus on all subjects taught and also spend sufficient time in developing the math skills.

For the subject of BEEE during the first week, we must focus on the following :

1. Complex numbers : Definition, types of representation , conversion , arithmetic and other important tasks.

Your first set of problems are given below :  Get ...Set .....Go...!!!!