A long solenoid of radius 2 cm has 100 turns/cm and
carries a current of 5 A. A coil of radius 1 cm having
100 turns and a total resistance of 20 S2 is placed inside
the solenoid coaxially. The coil is connected to
galvanometer. If the current in the solenoid is reversed
in direction, find the charge flown through the
galvanometer
answer is
Answers
Step-by-step explanation:
in teams or competing as individuals. In certain sports such as racing, many contestants may compete, simultaneously or consecutively, with one winner; in others, the contest (a match) is between two sides, each attempting to exceed the other. Some sports allow a "tie" or "draw", in which there is no single winner; others provide tie-breaking methods to ensure one winner and one loser. A number of contests may be arranged in a tournament producing a champion. Many sports leagues make an annual champion by arranging games in a regular sports season, followed in some cases by playoffs.
Sport in childhood. Association football, shown above, is a team sport which also provides opportunities to nurture physical fitness and social interaction skills.
Sport is generally recognised as system of activities which are based in physical athleticism or physical dexterity, with the largest major competitions such as the Olympic Games admitting only sports meeting this definition,[3] and other organisations such as the Council of Europe using definitions precluding activities without a physical element from classification as sports.[2] However, a number of competitive, but non-physical, activities claim recognition as mind sports. The International Olympic Committee (through ARISF) recognises both chess and bridge as bona fide sports, and SportAccord, the international sports federation association, recognises five non-physical sports: bridge, chess, draughts (checkers), Go and xiangqi,[4][5] and limits the number of mind games which can be admitted as sports.[1]
Sport is usually governed by a set of rules or customs, which serve to ensure fair competition, and allow consistent adjudication of the winner. Winning can be determined by physical events such as scoring goals or crossing a line first. It can also be determined by judges who are scoring elements of the sporting performance, including objective or subjective measures such as technical performance or artistic impression.
Records of performance are often kept, and for popular sports, this information may be widely announced or reported in sport news. Sport is also a major source of entertainment for non-participants, with spectator sport drawing large crowds to sport venues, and reaching wider audiences through broadcasting. Sport betting is in some cases severely regulated, and in some cases is central to the sport.
According to A.T. Kearney, a consultancy, the global sporting industry is worth up to $620 billion as of 2013.[6] The world's most accessible and practised sport is running, while association football is the most popular spectator sport.[7]