# How is electromagnetism used today?

How is electromagnetism used today?

The base of electrical engineering is electromagnetism. You found electromagnetism everywhere in a electrical devices around you.

## Related questions

Description : Why is electromagnetism so important?

Description : How can a magnetic field be used to generate an electric current?

Answer : Magnetic  field  can  be  used  to  generate  electric  current  on  a  condition  that  it  is  on  a  rate  of  changing  magnetic  flux.  (Faraday's  law)

Description : How fast is an electromagnetic wave?

Description : What are the electromagnetic waves used in remote control?

Description : Define: (i) Electromagnetism (ii) Magnetic flux.

Answer : i)Electromagnetism : It is the magnetism generated by electricity. OR  It is defined as the phenomenon associated with electric and magnetic fields and their interactions with each other. ii) Magnetic flux : The total number of magnetic lines of force in a magnetic field is called magnetic flux.

Description : Gauss' law of electricity, Gauss' law of magnetism, Faraday's law of induction, and Amperes' law form the basic equations of electromagnetism. This combination is collectively known as: w) Coulomb's equations x) Volta's equations y) Fermi's equations z) Maxwell's equations

Description : GAP analysis: (a) Is a planning approach for determining where an organization as today. (b) Is a planning approach for determining how an organization will reach its goals. (c) Provides a diagram showing a company's present momentum and its potential. (d) All of the above.

Answer : (d) All of the above.

Description : The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is  (A) 10 A (B) 14.14 A (C) 15 A (D) 17.32 A

Answer : The rms value of the current in a wire which carries a d.c. current of 10 A and a sinusoidal alternating current of peak value 20 A is 17.32 A

Description : The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper tube of 60 mm diameter is  (A) 3.2 µH (B) 3.2 mH (C) 32.0 mH (D) 3.2 H

Answer : The inductance of a long solenoid of length 1000 mm wound uniformly with 3000 turns on a cylindrical paper tube of 60 mm diameter is 32.0 mH

Description : What are the dangers of electromagnetic waves?

Description : What is the speed of an electromagnetic wave in water?

Description : What is the force that holds protons and neutrons together in the nucleus of an atom?

Description : What is an example of an electromagnetic?

Description : What do you mean by electromagnetic field?

Description : What is the definition of electromagnetic force?

Description : What food items did you eat so far today?

Description : What’s something you intended to do today, but didn’t? Why not?

Description : The principle use of dividing the sky up into constellations today is to A. identify regions and/or designate positions for objects in the sky. B. allow historians to recall and/or identify the ... the stars. D. allow astrologers to predict the future. E. prohibit stars from crossing the borders.

Answer : A. identify regions and/or designate positions for objects in the sky.

Description : Today‟s managers understand that the success of any effort at improving quality and productivity must include _____. (a) Quality management programs ; (b) Customer service improvements (c) Employee's participation ; (d) Manufacturing simplification

Answer : (c) Employee's participation ;

Description : Today‟s organization are (a) Open system ; (b) Closed system ; (c) Open as well as closed ; (d) None of these

Answer : (a) Open system ;

Description : Managers today realize that long-term success can be achieved primarily by satisfying the customer. Customers are demanding quicker service, higher quality, and more _____. (a) Value for their money ; (b) Personal attention ; (c) Variety in services ; (d) Online choices

Answer : (a) Value for their money ;

Description : What are the two major political parties in the United States today? Choose one: a. Reform and Green. b. American and Bull-Moose. c. Democratic-Republican and Whig. d. Democrat and Republican.

Description : What is considered to be the approximate difference in average temperature between the "little ice age" and today? w) 1 to 3 degrees centigrade x) 5 to 8 degrees centigrade y) 10 to 12 degrees centigrade z) 15 to 20 degrees centigrade

Description : Mount St. Helens is one of the more active volcanos in the United States today. In what state is Mount St. Helens located?

Description : Of the three types of corals, Scleractinian, Rugose and Tabulate, which one is still in existence today?

Description : Which of the following energy technologies is not utilized for power generation today? w) Nuclear Fission x) Solar Ponds y) Geothermal Power z) Nuclear Fusion

Description : Did you hear [story] on the news today?

Description : Is there anything that’s legal today that should be criminalized?

Description : Would you rather get 10 million \$ today, or in monthly payments spread out across your lifetime?

Description : Dream as if you'll live forever. Live as if you'll die today. - James Dean quote

Description : Yesterday's the past and tomorrow's the future. Today is a gift-- which is why they call it the present. - Bill Keane famous quote

Description : The only limits to the possibilities in your life tomorrow are the buts you use today. - Les Brown quote

Description : Work as though you would live forever, and live as though you would die today. - Og Mandino - success quote

Description : "The only limit to our realization of tomorrow will be our doubts of today." - Franklin D. Roosevelt

Description : "The difficulties and struggles of today are but the price we must pay for the accomplishments and victories of tomorrow." - William Boetcker

Description : "Yesterday I dared to struggle. Today I dare to win." - Bernadette Devlin

Description : "The critical ingredient is getting off your butt and doing something. It's as simple as that. A lot of people have ideas, but there are few who decide to do something about them now. Not tomorrow. Not next week. But today. The true entrepreneur is a doer." - Nolan Bushnell

Description : The education of primitive man included the elements which today would be termed as Options: A) Vocational B) Moral C) Religious D) All the above

Answer : D) All the above

Description : A teacher today, is least expected to serves as Options: A) A director of many activities B) An able publicist of the school C) An encyclopaedia of knowledge D) A committee member and consultant

Answer : C) An encyclopaedia of knowledge

Description : According to scientists at the University of California, the pattern of changes that have occurred in human DNA over the millennia indicate the possibility that everyone alive today might be descended ... ) indicates that everyone alive today might be a descendant from a single female ancestor who

Description : 1. Which Union Territory attained statehood in February, 1987 ? 2. Which oxyacid of halogen has maximum acidic nature? 3. From when was the Zero Base Budgeting in India first experimented? 4. What ... the Bay of Bengal? 20. In ancient India, at where was the earliest capital of Magadha kingdom?

Answer : Answer : 1. Goa 2. HClO4 3. April, 1987 4. Over felling 5. Rani of Jhansi 6. Shane Warne 7. Process of habitat loss 8. Article 40 9. 30 percent 10. Sarojini Naidu 11. Rectifier 12. P.R. Ramesh ... 14. 150 to 400 15. Protest against Rowlatt Act 16. Red pandas 17. 73rd 18. Cracking 19. 204 20. Rajgir

Description : The average age of Krishnan family of 10 members was 34 yrs, 3 yrs ago. A baby having been born, the average age of the family is the same today. The present age of the baby. A) 1yr B) 3yrs C) 4yrs D) 2yrs

Answer : C) Total age of 10 members , 3 yrs ago = (34*10)yrs = 340 yrs Total age of 10 members now = (340 +3*10) =370yrs Total age of 11 members now = (34*11)yrs =374yrs Therefore age of the baby= 374 – 370 =4yrs.

Description : Where can you find London bridge today

Answer : USA ( Arizona )

Description : A radioactive isotope has a half-life of 10 days. If today there are 125 g of it left, what was its original weight 40 days earlier  (a) 600 g (b) 1000 g (c) 1250 g (d) 2000 g

Answer : Half life = 10days  The formula which is, 1/(2)^n × original weight = Weight left today.  To obtain the value of n = divide no of days by half life ie.,n= 40/10= 4 n=4 So, 1/(2)^n × original Weight = 125g 1/(2)^4 × Original weight = 125 Original weight = 16×125 = 2000g

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