Why is the core made from laminations

Assignment Help Electrical Engineering
Reference no: EM131340144

1. Sketch the circuit symbol for a transformer, and explain its principle of operation. Why is the core made from laminations? Is the core material a ‘ hard ' or a ‘ soft ' magnetic material? Give the reason for this.

2. A transformer with a turns ratio of 20:1 has 240 V applied to its primary. Calculate the secondary voltage.

Reference no: EM131340144

Questions Cloud

Resale value be after 5years : A laptop computer is purchased for $1850. After each year, the resale value decreases by 25%. What will the resale value be after 5years? Use the calculator provided and round your answer to the nearest dollar.
Assume that the price of general electric shares : A mutual fund has 450 shares of General Electric, currently trading at $17, and 450 shares of Microsoft, Inc., currently trading at $25. The fund has 1,000 shares outstanding. Assume that the price of General Electric shares is realized at $20. What ..
Determine the percentage change : Determine the percentage change in the value of the given currencies relative to the U.S. dollar between November 15, 2001 and February 20, 2004.
How do subsidies hurt or help consumers : What is Creative Destruction and what role does it play in our society? How do subsidies hurt/help businesses? How do subsidies hurt/help consumers?
Why is the core made from laminations : Sketch the circuit symbol for a transformer, and explain its principle of operation. Why is the core made from laminations? Is the core material a ‘ hard ' or a ‘ soft ' magnetic material? Give the reason for this.
What will the area be after 6 years : A certain forest covers an area of 3900km2. Suppose that each year this area decreases by 4.25%. What will the area be after 6years? Use the calculator provided and round your answer to the nearest square kilometer.
Introductory macroeconomics that money multiplier : Please recall from introductory macroeconomics that the money multiplier = 1/(required reserve ratio). The trading desk at the Federal Reserve sold $100,000,000 in T-bills to the public. If the current reserve requirement is 8.0%, how much could the ..
Cookie dough and one package of oatmeal cookie dough : Jose sold 5 packages of white chocolate chip cookie dough and 5 packages of oatmeal cookie dough for a total of $110. What is the cost each of one package of white chocolate chip cookie dough and one package of oatmeal cookie dough?
Calculate the secondary voltage current and power : A 4:1 voltage ‘ step-down ' transformer is connected to a 110 V a.c. supply. If the current drawn from this supply is 100 mA, calculate the secondary voltage, current and power.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Use the five forces to offer explanations for this disparity

In the United States, the incomes of specialists such as heart surgeons can easily triple the incomes of primary care practitioners. Use the five forces to offer explanations for this disparity. Can you think of any other possible explanations?

  Repeat with the inductance and capacitance in parallel

Sketch or use the computer program of your choice to produce a plot of the impedance magnitude versus angular frequency for a 20-mH inductance in series with a 50-μF capacitance. Allow ω to range from zero to 2000 rad/s and the vertical axis to ra..

  Explain which wafer will exhibit the larger resistivity

(a) An average hole velocity of 10^3 cm/sec results when 2 v is appliedaccross a 1 cm-long semiconductor bar. What is the mobilityof the bar (b) name the two dominant carrier scattering mechanisms innondegenerately doped semiconductors of device qu..

  What is qualitative difference in cmos nd non-cmos devices

Consider the current it takes to power a +5V 74xx245(Icc). What is the qualitative difference between the CMOS devices and the non-CMOS devices and the non-CMOS devices What is the explanation for the difference

  Find the induced emf if the speed changes to 2000 rpm

A separately excited dc generator produces 400 v at 1500 rpm under open circuit conditions. Find the induced emf if the speed changes to 2000 rpm. Assume the flux is constant.

  Explain the two possible frequencies

What are the two possible frequencies to which the local oscillator could be set? What bandwidth should the 10.7 MHz IF amplifier have?

  What is the range of intensity that can be produced

8 bit DAC with a 5 volt reference connects to a light source with an intensity given by Il=45V^(3/2)W/m^2 a. what is the range of intensity that can be produced b. what intensities are produced by digital inputs of 1bh, 7ah,9fh,e5h

  Describe in vhdl the circuit k use structural architecture

A circuit computes the product of two numbers, a 4-bit A[3..0]=A3A2A1A0 and a 3-bit B[2..0]=B2B1B0 which they appear in input. The output P[6..0]=P6P5P4P3P2P1P0 represents the answer (e.g. if A=1011 and B=101 then P=0110111).

  Write an expression for the normalized modulating signal

Compare the power contained in the sidebands to the total power in the modulated signal. What is the power efficiency in this AM scheme and calculate the PEP supplied by the AM transmitter - Write an expression for the normalized modulating signal.

  Will the motor work or not

A three-phase induction motor is required to operate from a single-phase source. One possible connection is shown in Figure P18.28. Will the motor work? Explain why or why not.

  Calculate overall efficiency of transmitter with modulation

A CB transmitter is rated to supply 4 W of carrier power to a 50 Ohm load while operating from a power supply that provides 13.8 V. The nominal supply current is 1 A without modulation and 1.8 A with 80 % modulation.

  Obtain and simplify the flip flop charactersitic equations

Analyze the synchrounous circuit with input X and output Z constructed with two flip flop of JK type with outputs QA and QB. The flip flop input exciatation are as follows: JA=XQB; KA=0; Jb=XQA'; KB=QA. the output equation is Z=XQB'.

Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd