One of the diode of a bridge rectifier connected to 100 V 50 Hz AC input is found to be damaged. The DC output of the circuit is 90 V. The minimum value of PIV of the diode required for replacement is : ?->(Show Answer!)

1. One of the diode of a bridge rectifier connected to 100 V 50 Hz AC input is found to be damaged. The DC output of the circuit is 90 V. The minimum value of PIV of the diode required for replacement is :

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MCQ->One of the diode of a bridge rectifier connected to 100 V 50 Hz AC input is found to be damaged. The DC output of the circuit is 90 V. The minimum value of PIV of the diode required for replacement is :....

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MCQ-> The English alphabet is divided into five groups. Each group starts with the vowel and the consonants immediately following that vowel and the consonants immediately following that vowel are included in that group. Thus, the letters A, B, C, D will be in the first group, the letters E, F, G, H will be in the second group and so on. The value of the first group is fixed as 10, the second group as 20 and so on. The value of the last group is fixed as 50. In a group, the value of each letter will be the value of that group. To calculate the value of a word, you should give the same value of each of the letters as the value of the group to which a particular letter belongs and then add all the letters of the word: If all the letters in the word belong to one group only, then the value of that word will be equal to the product of the number of letters in the word and the value of the group to which the letters belong. However, if the letters of the words belong to different groups, then first write the value of all the letters. The value of the word would be equal to the sum of the value of the first letter and double the sum of the values of the remaining letters.For Example : The value of word ‘CAB’ will be equal to 10 + 10 + 10 = 30, because all the three letters (the first letter and the remaining two) belong to the first group and so the value of each letter is 10. The value of letter BUT = $$10 + 2 \times 40 + 2 \times 50 = 190$$ because the value of first letter B is 10, the value of T = 2 $$\times$$ 40 (T belongs to the fourth group) and the value of U = 2 $$\times$$ 50 (U belongs to the fifth group). Now calculate the value of each word given in questions 161 to 165 :AGE
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MCQ-> Read the following passage and answer the questions. Passage: An old man with steel rimmed spectacles and very dusty clothes sat by the side of the road. There was a pontoon bridge across the river and carts, trucks, and men, women and children were crossing it. The mule-drawn carts staggered up the steep bank from the bridge with soldiers helping to push against the spokes of the wheels. The trucks ground up and away heading out of it all and the peasants plodded along in the ankle deep dust. But the old man sat there without moving. He was too tired to go any farther. It was my business to cross the bridge, explore the bridgehead beyond and find out to what point the enemy had advanced. I did this and returned over the bridge. There were not so many carts now and very few people on foot, but the old man was still there. "Where do you come from?" I asked him. "From San Carlos," he said, and smiled. That was his native town and so it gave him pleasure to mention it and he smiled. "I was taking care of animals." he explained. "Oh," I said, not quite understanding. "Yes," he said, "I stayed. you see, taking care of animals. I was the last one to leave the town of San Carlos." He did not look like a shepherd nor a herdsman and I looked at his black dusty clothes and his gray dusty face and his steel rimmed spectacles and said. "What animals were they?" "Various animals." he said. and shook his head. "I had to leave them." I was watching the bridge and the African looking country of the Ebro Delta wondering how long now it would be before we would see the enemy.. "What animals were they?" I asked. "There were three animals altogether," he explained. "There were two goats and a cat and then there were four pairs of pigeons." "And you had to leave them?" I asked. "Yes. Because of the artillery. The captain told me to go because of the artillery." "And you have no family?" I asked, watching the far end of the bridge where a few last carts were hurrying down the slope of the bank. "No," he said, "only the animals I stated. The cat, of course, will be all right. A cat can look out for itself. but I cannot think what will become of the others." "What politics have you?" I asked. "I am without politics," he said. "I am seventy-six years old. I have come twelve kilometers now and I think now I can go no further." "This is not a good place to stop," I said. "If you can make it, there are trucks up the road where it forks for Tortosa." "I will wait a while," he said, "and then I will go. Where do the trucks go?" "Towards Barcelona," I told him.Where was the old man coming from?
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