Question

(D)
35. A transformer has an efficiency of 80% and works at 100 volts and 4KW. If the secondary voltage is 240
volts, then the values of current in primary and secondary coil are
(A) 40 ampere and 133 ampere respectively
(B) 133 ampere and 40 ampere respectively
( 8ampere and 16 ampere respectively
(D) None of these
36. Which of these works on the principle of self induction ?
(A) transformer
(B) transistor
(C) choke
(D) none of these
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Answer 1

Answer:

bate tum se na ho paye ga noobde