For a given wirewound core, an increase in current through the coil ?->(Show Answer!)

1. For a given wirewound core, an increase in current through the coil

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MCQ-> Read the following passage carefully and answer the questions given below it. Certain words/phrases are given in bold to help you locate them while answering some of the questions. Core competencies and focus are now the mantras of corporate strategists in Western economies. But while managers in the West have dismantled many conglomerates assembled in the 1960s and 1970s, the large, diversified business group remains the dominant form of enterprise throughout most emerging markets. Some groups operate as holding companies with full ownership in many enterprises, others are collections of publicly traded companies, but all have some degree of central control. As emerging markets open up to global competition, consultants and foreign investors are increasingly pressuring these groups to conform to Western practice by scaling back the scope of their business activities. The conglomer-, ate is the dinosaur of organizational design, they argue, too unwieldy and slow to compete in today’s fast-paced markets. Already a number of executives have decided to break up their groups in order to show that they are focusing on only a few core businesses. There are reasons to worry about this trend. Focus is good advice in New York or London, but something important gets lost in translation when that advice is given to groups in emerging markets. Western companies take for granted a range of institutions that support their business activities, but many of these institutions are absent in other regions of the world. Without effective securities regulation and venture capital firms, for example, focused companies may be unable to raise adequate financing; and without strong educational institutions, they will struggle to hire skilled employees. Communicating with customers is difficult when the local infrastructure is poor, and unpredictable government behavior can stymie any operation. Although a focused strategy may enable a company to perform a few activities well, companies in emerging markets must take responsibility for a wide range of functions in order to do business effectively. In the case of product markets, buyers and sellers usually suffer from a severe dearth of information for three reasons. First, the communications infrastructure in emerging markets is often underdeveloped. Even as wireless communication spreads throughout the West, vast stretches in countries such as China and India remain without telephones. Power shortages often render the modes of communication that do exist ineffective. The postal service is typically inefficient, slow, or unreliable; and the private sector rarely provides efficient courier services. High rates of illiteracy make it difficult for marketers to communicate effectively with customers. Second, even when information about products does get around, there are no mechanisms to corroborate the claims made by sellers. Independent consumer-information organizations are rare, and government watchdog agencies are of little use. The few analysts who rate products are generally less sophisticated than their counterparts in advanced economies. Third, consumers have no redress mechanisms if a product does not deliver on its promise. Law enforcement is often capricious and so slow that few who assign any value to time would resort to it. Unlike in advanced markets, there are few extrajudicial arbitration mechanisms to which one can appeal. As a result of this lack of information, companies in emerging markets face much higher costs in building credible brands than their counterparts in advanced economies. In turn, established brands wield tremendous power. A conglomerate with a reputation for quality products and services can use its group name to enter new businesses, even if those businesses are completely unrelated to its current lines. Groups also have an advantage when they do try to build up a brand because they can spread the cost of maintaining it across multiple lines of business. Such groups then have a greater incentive not to damage brand quality in any one business because they will pay the price in their other businesses as well.Which of the following sentence(s) is/are correct in the context of the given passage ? I. Consultants and foreign investors argue that the conglomerate is the dinosaur of organisational design too unvvieldly and slow to compete in today’s fast-paced markets. II. Core competencies and focus are now the mantras of corporate strategists in western economies. III. Due to lack of information required, companies in emerging markets face much higher costs in building credible brands in comparison to their counterparts in advanced economies.....

MCQ-> Read the following passage carefully and answer the questions given at the end. The second issue I want to address is one that comes up frequently - that Indian banks should aim to become global. Most people who put forward this view have not thought through the costs and benefits analytically; they only see this as an aspiration consistent with India’s growing international profile. In its 1998 report, the Narasimham (II) Committee envisaged a three tier structure for the Indian banking sector: 3 or 4 large banks having an international presence on the top, 8-10 mid-sized banks, with a network of branches throughout the country and engaged in universal banking, in the middle, and local banks and regional rural banks operating in smaller regions forming the bottom layer. However, the Indian banking system has not consolidated in the manner envisioned by the Narasimham Committee. The current structure is that India has 81 scheduled commercial banks of which 26 are public sector banks, 21 are private sector banks and 34 are foreign banks. Even a quick review would reveal that there is no segmentation in the banking structure along the lines of Narasimham II.A natural sequel to this issue of the envisaged structure of the Indian banking system is the Reserve Bank’s position on bank consolidation. Our view on bank consolidation is that the process should be market-driven, based on profitability considerations and brought about through a process of mergers & amalgamations (M&As;). The initiative for this has to come from the boards of the banks concerned which have to make a decision based on a judgment of the synergies involved in the business models and the compatibility of the business cultures. The Reserve Bank’s role in the reorganisation of the banking system will normally be only that of a facilitator.lt should be noted though that bank consolidation through mergers is not always a totally benign option. On the positive side are a higher exposure threshold, international acceptance and recognition, improved risk management and improvement in financials due to economies of scale and scope. This can be achieved both through organic and inorganic growth. On the negative side, experience shows that consolidation would fail if there are no synergies in the business models and there is no compatibility in the business cultures and technology platforms of the merging banks.Having given that broad brush position on bank consolidation let me address two specific questions: (i) can Indian banks aspire to global size?; and (ii) should Indian banks aspire to global size? On the first question, as per the current global league tables based on the size of assets, our largest bank, the State Bank of India (SBI), together with its subsidiaries, comes in at No.74 followed by ICICI Bank at No. I45 and Bank of Baroda at 188. It is, therefore, unlikely that any of our banks will jump into the top ten of the global league even after reasonable consolidation.Then comes the next question of whether Indian banks should become global. Opinion on this is divided. Those who argue that we must go global contend that the issue is not so much the size of our banks in global rankings but of Indian banks having a strong enough, global presence. The main argument is that the increasing global size and influence of Indian corporates warrant a corresponding increase in the global footprint of Indian banks. The opposing view is that Indian banks should look inwards rather than outwards, focus their efforts on financial deepening at home rather than aspiring to global size.It is possible to take a middle path and argue that looking outwards towards increased global presence and looking inwards towards deeper financial penetration are not mutually exclusive; it should be possible to aim for both. With the onset of the global financial crisis, there has definitely been a pause to the rapid expansion overseas of our banks. Nevertheless, notwithstanding the risks involved, it will be opportune for some of our larger banks to be looking out for opportunities for consolidation both organically and inorganically. They should look out more actively in regions which hold out a promise of attractive acquisitions.The surmise, therefore, is that Indian banks should increase their global footprint opportunistically even if they do not get to the top of the league table.Identify the correct statement from the following:
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MCQ->An air cored coil has an inductance of 0.3 H. If another coil has an iron core of μr = 500, the remaining quantities being the same, the inductance of the second coil will be....

MCQ->In an air cored coil, a current of 0.7 A causes a flux of 5 x 10-6 Wb. If the core is made of cast iron and the coil is similar, the same current can set up a flux of about....