Transformer – 4

4. The main purpose of using core in a transformer is to :

(a) decrease iron losses
(b) prevent eddy current loss
(c) eliminate magnetic hysteresis
(d) decrease reluctance of the common magnetic circuit

Answer

Answer : (d)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Transformer - 1
Transformer » Exercise - 1 1. A transformer transforms : (a) frequency (b) voltage (c) current (d) voltage and current
Tags: transformer, current, exercise, electrical, engineering
Transformer - 5
Transformer » Exercise - 15. Transformer cores are laminated in order to : (a) simplify its construction (b) minimise eddy current loss (c) reduce cost (d) reduce hysteresis loss
Tags: transformer, loss, exercise, eddy, current, hysteresis, electrical, engineering
Transformer - 3
Transformer » Exercise - 13. In an ideal transformer : (a) windings have no resistance (b) core has no losses (c) core has infinite permeability (d) all of the above
Tags: transformer, core, exercise, losses, electrical, engineering
Transformer - 12
Transformer » Exercise - 112. The main purpose of performing open-circuit test on a transformer is to measure its : (a) Cu loss (b) core loss (c) total loss (d) insulation resistance
Tags: transformer, loss, exercise, main, purpose, core, electrical, engineering
Transformer - 8
Transformer » Exercise - 18. If the primary power of an ideal transformer having a 2:1 voltage ratio is 100 W, the secondary power is : (a) 50 W (b) 75 W (c) 100 W (d) 200 W
Tags: transformer, exercise, electrical, engineering

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