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Magnetic Circuit QUESTIONS AND ANSWERS

Electrical Engineering : Magnetic Circuit QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Electrical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

6.The rate of rise of current through an inductive coil is maximum

at 63.2% of its maximum steady value

at the start of the current flow

after one time constant

near the final maximum value of current

7.If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be

zero

small

large

none of the above

8.The unit of retentivity is

weber

weber/sq. m

ampere turn/metre

ampere turn

9.Silicon steel is used in electrical machines because it has

low co-ercivity

low retentivity

low hysteresis loss

high co-ercivity

10.Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it

lowers their power efficiency

increases their cost of manufacture

leads to their increased weight

produces fringing

More Magnetic Circuit QUESTIONS AND ANSWERS available in next pages

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Electrical Engineering Questions And Answers :: Magnetic Circuit: part1

Magnetic Circuit QUESTIONS AND ANSWERS

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