Question

The length of a rectangle ABCD is 'a' metre breadth is 'b' metre.The length of the rectangle increases 10% and the breadth decreases 10%.
a) What is the quantity of increased length and decreased breadth?
b)Determine the length and breadth?
c)How much will the area of the rectangle increases or decreases in percentage?
Answers with step by step explanation.
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Answer 1

Answer:

Given, input power (Vp ) = 2200V

Number of turns (n1) = 3000

Output power (Vs) = 220 V

⇒ 300