Which of the following is correct for transformer ?
(A)
It converts A.C. into D.C.
(B)
It converts D.C. into A.C.
(C)
It increases or decreases D.C. voltage
(D)
It increases or decreases A.C. voltage
Answers
Answer =(d) it increases or decreases A.C. voltage.(☑️)
Given : Transformer
To Find : Which of the following is correct for transformer ?
(A) It converts A.C. into D.C.
(B) It converts D.C. into A.C.
(C) It increases or decreases D.C. voltage
(D) It increases or decreases A.C. voltage
Solution:
Transformer increases or decreases A.C. voltage
Depending upon primary and secondary winding turn ratio
converts A.C. into D.C. - RECTIFIER
converts D.C. into A.C. - INVERTER
increases or decreases D.C. voltage - SMPS DC/DC converter
Transformer works on process of electromagnetic induction.
Transformer is passive electrical device
Transfers electrical energy from one circuit to another
Transformer useful in the power transmission of electric energy.
The transmission current is AC.
Transformer is commonly used to increase or decrease the supply
Can be be used for 1: 1 ratio as well for isolation purpose
Transformer increases or decreases A.C. voltage is correct answer
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