An isolation transformer has primary to secondary turns ratio of
An isolation transformer has primary to secondary turns ratio of: 1:1 1:2 2:1 Any of above Correct answer: 1. 1:1
Read moreTransformer
A transformer is an electrical device that steps ac electric power from one voltage level to another.
The flux in the core of single-phase transformer is
The flux in core of single phase transformer is: Purely rotating one Purely alternating one Partly alternating and partly rotating
Read moreCertain transformer has full-load copper losses of 500 W. What is the value of the copper loss at half load
Certain transformer has full-load copper losses of 500 W. What is value of copper loss at half load: 62.5 W
Read moreWhat is the full load primary current of a 3000/150 V, 30 kVA transformer
What is the full load primary current of a 3000/150 V, 30 kVA transformer: 2 A 5 A 10 A
Read moreTransformer MCQ Part 9
Transformer MCQ Questions The iron core in transformer provides _____________ path to main flux The iron core in transformer provides
Read moreTransformer MCQ Part 8
Transformer MCQ Questions The efficiency of two identical transformers under load conditions can be determined by which of the following
Read moreThe voltage per turn of primary of the transformer as compared to the voltage per turn of the secondary is
The voltage per turn of primary of transformer is ___________ as compared to voltage per turn of secondary: Less More
Read moreWhich of the following is the purpose of providing an iron core in transformer
The purpose of providing iron core in transformer is to: Decrease the reluctance of the magnetic path Provide support to
Read moreThe efficiency of a power transformer is around
The efficiency of a power transformer is around: 40% 70% 80% 95% Correct answer: 4. 95%
Read moreWhich of the following property is not possessed by a transformer
A transformer doesn’t posses ______________ changing property: Voltage Current Power Impedance Correct answer: 3. Power
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