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The core of a transformer is laminated...

The core of a 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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The core of any transformer is laminated so as to

The core of any transformer is laminated so as to (1.) energy losses due to eddy currents may be minimized (2.) the weight of the transformer may be reduced (3.) rusting of the core may be prevented (4.) ratio of voltage in primary and secondary may be increased

The core of a transformer is laminated to reduce

Transformers

Why is the core of a transformer laminated?

Core of transformer is made up

The diagram below shows the core of a transformer and its input and output connections. State the material used for the core.

The diagram below shows the core of a transformer and its input and output connections. Copy and complete the diagram of the transformer by drawing input and output coils.

Transformer is used to

Assertion : When a current flows in the coil of a transformer then its core becomes hot. Reason : The core of transformer is made of softiron.

AAKASH INSTITUTE ENGLISH-ELECTROMAGNETIC INDUCTION-Assignment (SECTION - A)
  1. If the radius of a coil is changing at the rate of 10^(-2) unit in a n...

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  2. If a coil of 40 turns and area 4.0 cm^(2) is suddenly remove from a m...

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  3. The core of a transformer is laminated so that :

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  4. In the circuit of figure , the bulb will be become suddenly bright , ...

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  5. A conducting square loop of side l and resistance R moves in its plane...

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  6. The coefficient of mutual inductance of two coils depends on

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

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

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

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

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  11. The variation of induced emf (epsilon ) with time (t) in a coil if a s...

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  12. In a uniform magnetic field B a wire in the form of a semicircle of ra...

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  13. A metal conductor of length 1 m rotates vertically about one of its en...

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  14. A copper disc of the radius 0.1 m is rotated about its centre with 20 ...

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  15. Two coils of self-inductance 2 mH and 8 mH are placed, so close togeth...

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  16. As a result of change in the magnetic flux linked to the closed loop s...

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  17. An inductor (L = 100 mH), a resistor (R = 100Omega) and a battery (E =...

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  18. The equivalent quantity of mass in electricity is

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  19. In the circuit shown in figure, power generated in

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  20. Dimensional formula of self-inductance is

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