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When we compare the half bridge converter and full bridge converter 1. The maximum collector current of a full bridge is only double that of the half bridge 2. Full bridge uses 4-power switches instead of 2, as in the double bridge. 3. Output power of a full bridge is twice that of a half bridge with the same input voltage and current. When of the above statements are correct?
Four friends A, B, C and D need to cross a bridge. A maximum two persons can cross it at a time. It is night and they just have one lamp. Persons that cross the bridge must carry the lamp to find the way. A pair must walk together at the speed of slower person. After crossing the bridge, the person having faster speed in the pair will return with the lamp each time to accompany another person in the group. Finally, the lamp has to be returned at the original place and the person who returns the lamp has to cross the bridge again without lamp. To cross the bridge, the time taken by them is as follows: A :1 minute, B : 2 minutes, C : 7 minutes and D : 10 minutes. What is the total minimum time required by all the friends to cross the bridge?
A boat is on the one side of a bridge and the other boat is on the other side of the bridge. The bridge is 36 meter above the river surface. The angles of depression of both the boats from the bridge point on the bridge are complementary to each other and the angle of depression of first boat from the bridge is tan-1(1/3), then what is the distance between both the boats?
A cow was standing on a bridge, 5m away from the middle of the bridge. A train was coming towards the bridge from the ends nearest to the cow. Seeing this cow ran towards the the train and managed to escape when the train was 2m away from bridge. If it had run in the opposite direction, it would hit by the train 2m before the end of the bridge. What is the lenght of the bridge in meters assuming the speed of the train is 4 times that of cow ?
Consider the following statements about the Salt March: 1. The Salt March was deliberately ignored by the European media. 2. The Salt March was widely covered by the American and European press. 3. The Salt March was the first nationalist activity in which women participated in large numbers. 4. The Salt March impressed upon the British the urgent need to devolve more power to Indians. Which of the statements given above are correct?
Consider the following statements about the Salt March :1.The Salt March was deliberately ignored by the European media.2.The Salt March was widely covered by the American and European press.3.The Salt March was the first nationalist activity in which women participated in large numbers.4.The Salt March impressed upon the British the urgent need to devolve more power to Indians.Which of the statements given above are correct?
Consider the following statements relating to salt production in India : 1. India is the second-largest producer of salt in the world next only to China. 2. Salt mining is carried out in Himachal Pradesh. 3. Gujarat is the leading producer of salt in India. 4. Groundwater is an important source of salt in Rajasthan. Which of the statements given above are correct?
Rearrange the following sentences in a meaningful order. A. One day the donkey suddenly tumbled down the stream and the salt bag also fell into the water. B. On the way they had to cross a stream.  C. The salt dissolved in the water and hence the bag became very light to carry. D. A salt seller used to carry the salt on his donkey to market every day. 
Given below are six sentences 4 of which are jumbled. The first and the last sentence are given. Pick the option that gives the logically correct order of the four sentences. S-1 A salt seller used to carry the salt bag on his donkey to the market every day. A: One day the donkey suddenly tumbled down the stream and the salt bag also fell into the water. B: The donkey was happy. C: On the way, they had to cross a stream. D: The salt dissolved in the water and hence the bag became very light to carry. S-6 Then the donkey started to play the same trick every day.
A shopkeeper sells tow types of salt. He sells one type of salt at Rs.14 per kg and incurs a loss of 12.5% whereas on selling the second type of salt at Rs.25 per kg he gains 25%. In what proportion should the two types of salt be mixed such that he can gain 25% by selling the mixture at Rs.22.5 per kg?