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The core of transformer is laminated so ...

The core of transformer is laminated so that

A

Ratio of voltage in the primary and secondary may be increased

B

Energy losses due to eddy currents may be minimised

C

Weights of transformer may be reduced

D

Rusting may be prevented

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The correct Answer is:
B
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Statement (A) : In high current low voltage windings of a transformer thick wire is used to minimize energy loss due to heat produced Statement (B) : The core of any transformer is laminated so as to reduce the erergy loss due to eddy currents.

The core of a transformer is laminated to reduce

The core of a transformer is laminated to reduce

The core of any transformaer is laminated so as to

AAKASH INSTITUTE-ELECTROMAGNETIC INDUCTION-Assignment (SECTION - A)
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  3. The core of transformer is laminated so that

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  5. A magnetic flux of 500 microweber passing through a 200 turn coil is r...

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  6. A coil of area 0.1m^(2) has 500 tums. After placing the coil in a magn...

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  7. Two circular coils have their centres at the same point. The mutual in...

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  8. When a battery is connected across a series combination of self induct...

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  9. In a uniform magneitc field of induced B a wire in the form of a semic...

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  10. A metal conductor of length 1m rotates vertically about one of its end...

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  11. A copper disc of radius 0.1 m is roated about its centre with 20 revol...

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  14. Dimensional formula of self-inductance is

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  15. A time varying magnetic flux passing through a coil is given by phi=xt...

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  16. A metalic ring is dropped down, keeping its plane perpendicular to a c...

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  17. Lights of a car become dim when the starter is opereterd. Why?

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  19. There is a uniform magnetic field directed perpendicular and into the ...

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