A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer?

Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity

Open App

EmSAT Achieve Exam > EmSAT Achieve Questions > A circular ring containing n number of spokes...

A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earth's magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emf

a)
increases
b)
decreases
c)
goes to infinity
d)
remain same

Correct answer is option 'D'. Can you explain this answer?

Join for Free

Join for Free

Verified Answer

A circular ring containing n number of spokes, parallel to each other,...

The EMF induced across the spokes of the ring is the same as the spokes are parallel to each other. So the net EMF will be equal to that generated in a single spoke.
Hence the number of spokes will not affect the total EMF induced. Hence option 4) is correct.

View all questions of this test

View all answers Start learning for free

Explore Courses for EmSAT Achieve exam

Similar EmSAT Achieve Doubts

The University Grants Commissions directive to college and university lecturers to spend a minimum of 22 hours a week in direct teaching is the product of budgetary cutbacks rather than pedagogic wisdom. It may seem odd, at first blush, that teachers should protest about teaching a mere 22 hours. However, if one considers the amount of time academics require to prepare lectures of good quality as well as the time they need to spend doing research it is clear that most conscientious teachers work more than 40 hours a week. In university systems around the world lecturers rarely spend more than 12 to 15 hours in direct teaching activities a week. The average college lecturer in India does not have any office space. If computers are available, internet connectivity is unlikely Libraries are poorly stocked.Now the UGC says universities must implement a complete freeze on all permanent recruitment, abolish all posts which have been vacant for more than a year and cut staff strength by 10%. And it is in order to ensure that these cutbacks do not affect the quantum of teaching that existing lecturers are being asked to work longer. Obviously, the quality of teaching and academic work in general will decline. While it is true that some college teachers do not take their classes regularly, the UGC and the institutions concerned must find a proper way to hold them accountable.An absentee teacher will continue to play truant even if the number of hours he is required to teach goes up. All of us are well aware of the unsound state that the Indian higher education system is in today.Thanks to years of sustained financial neglect, most Indian universities and colleges do no research worth the name. Even as the number of students entering colleges has increased dramatically, public investment in higher education has actually declined in relative terms. Between 1985 and 1997, when public expenditure on higher education as a percentage of outlays on all levels of education grew by more than 60% in Malaysia and 20% in Thailand, India showed a decline of more than 10%.Throughout the world, the number of teachers in higher education per million population grew by more than 10% in the same period; in India it fell by 1% Instead of transferring the burden of government apathy on to the backs of the teachers, the UGC should insist that the needs of the countrys university system are adequately catered for.Between 1985-1997 the number of teachers in higher education per million population, in India .....

View answer

What is the relation between the direction of motion of the conductor and the direction of induced emf?

View answer

On attending a conference, which focused on the role of the services sector in Indian economy I was amazed. The conference gave a very interestingperspectiveon the role of the service sector in the growth of Indian economy in relation to growth rates in agriculture and industry. The current situation in India is that the growth rate of services has overtaken both agriculture and industry and is now contributing to more than 50% of GDP. The service sector has the highest growth rate and is the leastvolatilesector. Growth is particularly marked in public services, IT and financial services.In some areas, the growth rate of the service sector is 40-50% due to increased use of mobile technologies. India, therefore has, a service-oriented economy. It hasnt followed traditional growth models as in China. However, in the process of doing so it has skipped the manufacturing stage and has jumped straight from the agriculture stage to service stage, which is also the main reason for the expansion of the service sector. In fact, the situation now is such that the growth in the service sector can and will support in the agriculture and industrial sectors. However, the only setback for Indian economy is the lack of growth in the manufacturing sector which causes dependence on other countries, which is not so desirable in terms of job creation and increased prosperity.Population is also a major concern of the Indian economy. As the population of India grows so also does the number of dependents in the population in both the lower and higher age groups. In such a scenario of increasing population, especially in an economy which still recovering from crisis, growth becomes difficult. For such an economy to grow it has to invest. Currently, the public sector invests more than it saves. The household sector saves in surplus, but it is not increasing so it cannot continue to support private and public sectors. There is a massive need to spend on agriculture and infrastructure development of the country. Apart from that health and education should also be the priority of the government particularly the education of women in order to reduce the birth rate.According to the passage, which of the following is/ are true about the impact of increasing population on Indian economy?A. If India attempts to absorb all the labour force, it will impact the growth of service sector negatively and in turn hamper the economic growth of the country.B. As the population of the country increases, the number of dependants in the country also increase which in turn increases the pressure on the economy.C. An increasing population can never lead the economy of the country towards prosperity; in fact it can only put strain on the economy of a country.

View answer

Comprehension:Flemings Left-Hand Rule and Right-Hand Rule are essential principles for understanding the interaction between magnetic fields, electrical currents, and motion. The Left-Hand Rule, applicable to electric motors, uses the thumb, forefinger, and middle finger each pointing perpendicularly to indicate force direction, magnetic field direction, and current direction, respectively. Conversely, the Right-Hand Rule is used for electric generators, with finger assignments indicating the direction of motion, magnetic field, and induced current, respectively. These rules are pivotal in determining the directionality in electromagnetic applications, with the left-hand rule focusing on force in motors and the right-hand rule on motion in generators.What does the forefinger indicate in the Flemings right hand rule?

View answer

Comprehension:Flemings Left-Hand Rule and Right-Hand Rule are essential principles for understanding the interaction between magnetic fields, electrical currents, and motion. The Left-Hand Rule, applicable to electric motors, uses the thumb, forefinger, and middle finger each pointing perpendicularly to indicate force direction, magnetic field direction, and current direction, respectively. Conversely, the Right-Hand Rule is used for electric generators, with finger assignments indicating the direction of motion, magnetic field, and induced current, respectively. These rules are pivotal in determining the directionality in electromagnetic applications, with the left-hand rule focusing on force in motors and the right-hand rule on motion in generators.In Flemings left rule, the middle finger represents ________________.

View answer

Top Courses for EmSAT AchieveView all

Mathematics for EmSAT Achieve

Physics for EmSAT Achieve

Biology for EmSAT Achieve

Chemistry for EmSAT Achieve

Mock Tests for EmSAT Achieve 2025

Top Courses for EmSAT Achieve

View all

A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer?

Share with a Friend

Answer this doubt

Question Description
A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? for EmSAT Achieve 2025 is part of EmSAT Achieve preparation. The Question and answers have been prepared according to the EmSAT Achieve exam syllabus. Information about A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for EmSAT Achieve 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer?.

Solutions for A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for EmSAT Achieve. Download more important topics, notes, lectures and mock test series for EmSAT Achieve Exam by signing up for free.

Here you can find the meaning of A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A circular ring containing n number of spokes, parallel to each other, is rotated in a plane that is perpendicular to the earths magnetic field. This generates EMF between the center and circular rim. If we increase the number of spokes of the ring then the induce emfa)increasesb)decreasesc)goes to infinityd)remain sameCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice EmSAT Achieve tests.

Explore Courses for EmSAT Achieve exam